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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Integrations\Connectors\Wikipedia;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Log;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use App\Models\User;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /* PHP-Wiki-API: This is a simple class to get short Wikipedia info boxes from a given Keyword.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @package    PHP-Wiki-API  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @copyright  Copyright (c) 2019 Igor Gaffling <[email protected]>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @license    https://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt  LGPL License  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @version    Release: @1.1@  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @link       https://github.com/gaffling/PHP-Wiki-API  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @since      Class available since Release 1.0  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @example    <php>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *             require_once __DIR__.'/wiki2api.php'; // Include the Wikipedia API Class  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *             $wiki = new wiki();                   // Start the Wikipedia API Class  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *             echo $wiki->api($_GET['q']);          // Output the API Response  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *             </php>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class WikiToApi  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    // Read and set Parameters  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function __construct($params=array())  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // Default Values  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $defaults = array(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        'language'      => 'de',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        'userAgent'     => 'WikiBot/1.0 (+http://'.$_SERVER['SERVER_NAME'].'/)',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        'betterResults' => true,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        'proxy'         => '',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        'imageProxy'    => true,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        'DEBUG'         => '',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // Merge Parameters and Defaults  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->params = array_merge($defaults, $params);  | 
            
                            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    // Helper Function to get the Content from the API URL  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    private function getContent($url, $user_agent, $proxy='')  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        // Hopfully we run PHP 4 >= 4.3.0  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if (function_exists('file_get_contents')) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            // Set User-Agent and Proxy  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $context = array (  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'http' => array (  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'user_agent'      => $user_agent,  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'proxy'           => $proxy,   | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'request_fulluri' => true,  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            ),  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            // Build Stream Context  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $context = stream_context_create($context);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            // Use file_get_contents() Function and hide Error with @  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $content = @file_get_contents($url, null, $context);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        else // We run PHP < 4.3.0 - OMG :-o  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            // Ini Var  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $content = '';   | 
            
            
                                                                        
                            
            
                                    
            
            
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                            // Open URL and hide Error with @  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            if($handle = @fopen($url, 'r')) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                                // While there is Data  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                while (!feof($handle))  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                {  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                    // Read the Data-Line  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                    $line = fgets($handle, 4096);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                    // Add the Data-Line to the Content Var  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                    $content .= $line;   | 
            
            
                                                                        
                            
            
                                    
            
            
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                                }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                // Better Close the FileHandle after the fgets()  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                fclose($handle);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        // The Function returns the Content  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        return $content;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    // Call the API Main Function  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function api($query)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // Ini Vars  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $text = $image = $description = '';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // Convert Query to Lowercase for Headline  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $strtolower = mb_strtolower($query);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // Convert Headlie to UTF-8 Uppercase Words  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $headline = mb_convert_case($strtolower, MB_CASE_TITLE, 'UTF-8');  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // If Query is complete Uppercase make also complete Uppercase Headline  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($query === strtoupper($query)) {  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $headline = mb_strtoupper($query);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // Replace spaces in Query to Underscore and use Uppercase Words from Headline   | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $query = str_replace(' ', '_', $headline); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // In DEBUG Mode print Query  | 
            
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
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                View Code Duplication | 
                        if ($this->params['DEBUG']=='KEY' || $this->params['DEBUG']=='ALL') { | 
            
                            
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                            echo '<tt><b>Search-Keyword </b><xmp>#'.$query.'#</xmp></tt>';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // First search the API if betterResults==true  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($this->params['betterResults'] == true) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            // Wikipedia API URL 1 - https://en.wikipedia.org/w/api.php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $url = 'https://'.$this->params['language'].'.wikipedia.org/w/api.php'.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                             '?action=query&format=json&list=search&srsearch=intitle:'.$query.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                             '&maxlag=1'; /* stop if wiki server is busy */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            // If API Call 1 could be reached  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if ($api = $this->getContent($url, $this->params['userAgent'], $this->params['proxy'])) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    135
                 | 
                                    
                                                     | 
                
                 | 
                                // Decode the 1 Response  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    136
                 | 
                                    
                                                     | 
                
                 | 
                                $data = json_decode($api, true);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    137
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    138
                 | 
                                    
                                                     | 
                
                 | 
                                // In DEBUG Mode print 1 Response  | 
            
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 
                    139
                 | 
                                    
                                                     | 
                
                View Code Duplication | 
                                if ($this->params['DEBUG']=='API1' || $this->params['DEBUG']=='ALL') { | 
            
                            
                    | 
                        
                     | 
                     | 
                     | 
                    
                                                                                                    
                        
                         
                                                                                        
                                                                                     
                     | 
                
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    140
                 | 
                                    
                                                     | 
                
                 | 
                                    echo '<pre><b>Search API-Call (1) Response</b> ';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    141
                 | 
                                    
                                                     | 
                
                 | 
                                    echo var_dump($data);   | 
            
                            
                    | 
                        
                     | 
                     | 
                     | 
                    
                                                                                                    
                        
                         
                                                                                        
                                                                                     
                     | 
                
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    142
                 | 
                                    
                                                     | 
                
                 | 
                                    echo '</pre>';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    143
                 | 
                                    
                                                     | 
                
                 | 
                                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    144
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    145
                 | 
                                    
                                                     | 
                
                 | 
                                // If there is a search Result  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    146
                 | 
                                    
                                                     | 
                
                 | 
                                if (isset($data['query']['search'][0]['title'])) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    147
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    148
                 | 
                                    
                                                     | 
                
                 | 
                                    // Set Headline  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    149
                 | 
                                    
                                                     | 
                
                 | 
                                    $headline = $data['query']['search'][0]['title'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    150
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    151
                 | 
                                    
                                                     | 
                
                 | 
                                    // Set the Query to the first Search Result (and replace Spaces with Underscores)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    152
                 | 
                                    
                                                     | 
                
                 | 
                                    $query = str_replace(' ', '_', $data['query']['search'][0]['title']); | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    153
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    154
                 | 
                                    
                                                     | 
                
                 | 
                                    // In DEBUG Mode print Found Keyword  | 
            
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 
                    155
                 | 
                                    
                                                     | 
                
                View Code Duplication | 
                                    if ($this->params['DEBUG']=='KEY' || $this->params['DEBUG']=='ALL') { | 
            
                            
                    | 
                        
                     | 
                     | 
                     | 
                    
                                                                                                    
                        
                         
                                                                                        
                                                                                     
                     | 
                
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    156
                 | 
                                    
                                                     | 
                
                 | 
                                        echo '<tt><b>Found Search-Keyword </b><xmp>#'.$query.'#</xmp></tt>';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    157
                 | 
                                    
                                                     | 
                
                 | 
                                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    158
                 | 
                                    
                                                     | 
                
                 | 
                                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    159
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    160
                 | 
                                    
                                                     | 
                
                 | 
                                // If Search Result is a 'Did you mean:' Hint  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    161
                 | 
                                    
                                                     | 
                
                 | 
                                if (isset($data['query']['searchinfo']['suggestion'])) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    162
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    163
                 | 
                                    
                                                     | 
                
                 | 
                                    // Set Text Hints depending on selected Language  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    164
                 | 
                                    
                                                     | 
                
                 | 
                                    if ($this->params['language'] == 'de') { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    165
                 | 
                                    
                                                     | 
                
                 | 
                                        $suggestionText = 'Meinten Sie: ';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    166
                 | 
                                    
                                                     | 
                
                 | 
                                    }   | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    167
                 | 
                                    
                                                     | 
                
                 | 
                                    else  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    168
                 | 
                                    
                                                     | 
                
                 | 
                                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    169
                 | 
                                    
                                                     | 
                
                 | 
                                        $suggestionText = 'Did you mean: ';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    170
                 | 
                                    
                                                     | 
                
                 | 
                                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    171
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    172
                 | 
                                    
                                                     | 
                
                 | 
                                    // Remove 'q=' Variable=Value Pair from Querystring  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    173
                 | 
                                    
                                                     | 
                
                 | 
                                    $QUERY_STRING = preg_replace('/'.('q'?'(\&|)q(\=(.*?)((?=&(?!amp\;))|$)|(.*?)\b)':'(\?.*)').'/i', '', $_SERVER['QUERY_STRING']); | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    174
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    175
                 | 
                                    
                                                     | 
                
                 | 
                                    // Delete 'intitle:' from Suggestion Keyword  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    176
                 | 
                                    
                                                     | 
                
                 | 
                                    $suggestion = str_replace('intitle:', '', $data['query']['searchinfo']['suggestion']); | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    177
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    178
                 | 
                                    
                                                     | 
                
                 | 
                                    // Make Suggestion UTF-8 Uppercase Words  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    179
                 | 
                                    
                                                     | 
                
                 | 
                                    $suggestion = mb_convert_case($suggestion, MB_CASE_TITLE, 'UTF-8');  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    180
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    181
                 | 
                                    
                                                     | 
                
                 | 
                                    // Make HTML Link for Suggestion  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    182
                 | 
                                    
                                                     | 
                
                 | 
                                    $description = $suggestionText.'<a href="?q='.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    183
                 | 
                                    
                                                     | 
                
                 | 
                                         str_replace(' ', '_', $suggestion).$QUERY_STRING.'">'.$suggestion.'</a>';                          | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    184
                 | 
                                    
                                                     | 
                
                 | 
                                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    185
                 | 
                                    
                                                     | 
                
                 | 
                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    186
                 | 
                                    
                                                     | 
                
                 | 
                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    187
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    188
                 | 
                                    
                                                     | 
                
                 | 
                        // Wikipedia API URL 2 - https://en.wikipedia.org/w/api.php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    189
                 | 
                                    
                                                     | 
                
                 | 
                        $url = 'https://'.$this->params['language'].  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    190
                 | 
                                    
                                                     | 
                
                 | 
                           '.wikipedia.org/api/rest_v1/page/summary/'.$query.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    191
                 | 
                                    
                                                     | 
                
                 | 
                           '?maxlag=1'; /* stop if wiki server is busy */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    192
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    193
                 | 
                                    
                                                     | 
                
                 | 
                        // If API Call 2 could be reached  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    194
                 | 
                                    
                                                     | 
                
                 | 
                        if ($api = $this->getContent($url, $this->params['userAgent'], $this->params['proxy'])) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    195
                 | 
                                    
                                                     | 
                
                 | 
                            // Decode the 2 Response  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    196
                 | 
                                    
                                                     | 
                
                 | 
                            $data = json_decode($api, true);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    197
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    198
                 | 
                                    
                                                     | 
                
                 | 
                            // In DEBUG Mode print 2 Response  | 
            
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 
                    199
                 | 
                                    
                                                     | 
                
                View Code Duplication | 
                            if ($this->params['DEBUG']=='API2' || $this->params['DEBUG']=='ALL') { | 
            
                            
                    | 
                        
                     | 
                     | 
                     | 
                    
                                                                                                    
                        
                         
                                                                                        
                                                                                     
                     | 
                
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    200
                 | 
                                    
                                                     | 
                
                 | 
                                echo '<pre><b>Main API-Call (2) Response</b> ';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    201
                 | 
                                    
                                                     | 
                
                 | 
                                echo var_dump($data);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    202
                 | 
                                    
                                                     | 
                
                 | 
                                echo '</pre>';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    203
                 | 
                                    
                                                     | 
                
                 | 
                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    204
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    205
                 | 
                                    
                                                     | 
                
                 | 
                            // If there is an Image in the Search Result  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    206
                 | 
                                    
                                                     | 
                
                 | 
                            if (isset($data['originalimage']['source'])) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    207
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    208
                 | 
                                    
                                                     | 
                
                 | 
                                // If the DSGVO imageProxy should be use define it  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    209
                 | 
                                    
                                                     | 
                
                 | 
                                $proxy = '';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    210
                 | 
                                    
                                                     | 
                
                 | 
                                if ($this->params['imageProxy']==true) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    211
                 | 
                                    
                                                     | 
                
                 | 
                                    $proxy = 'wiki-image-proxy.php?url=';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    212
                 | 
                                    
                                                     | 
                
                 | 
                                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    213
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    214
                 | 
                                    
                                                     | 
                
                 | 
                                // Build HTML for Image  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    215
                 | 
                                    
                                                     | 
                
                 | 
                                $image = '<img src="'.$proxy.$data['thumbnail']['source'].'" />';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    216
                 | 
                                    
                                                     | 
                
                 | 
                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    217
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    218
                 | 
                                    
                                                     | 
                
                 | 
                            // Correct the Text  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    219
                 | 
                                    
                                                     | 
                
                 | 
                            $text = str_replace('#', ': ', $data['extract_html']); | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    220
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    221
                 | 
                                    
                                                     | 
                
                 | 
                            // If there is a Description  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    222
                 | 
                                    
                                                     | 
                
                 | 
                            if (isset($data['description'])) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    223
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    224
                 | 
                                    
                                                     | 
                
                 | 
                                // Correct the Description depending on selected Language  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    225
                 | 
                                    
                                                     | 
                
                 | 
                                $description = str_replace(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    226
                 | 
                                    
                                                     | 
                
                 | 
                                    array(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    227
                 | 
                                    
                                                     | 
                
                 | 
                                    'Wikimedia-Begriffsklärungsseite',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    228
                 | 
                                    
                                                     | 
                
                 | 
                                    'Disambiguation page providing links to topics that could be referred to by the same search term'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    229
                 | 
                                    
                                                     | 
                
                 | 
                                    ),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    230
                 | 
                                    
                                                     | 
                
                 | 
                                    array(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    231
                 | 
                                    
                                                     | 
                
                 | 
                                    'kann sich auf Folgendes beziehen',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    232
                 | 
                                    
                                                     | 
                
                 | 
                                    'may refer to the following'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    233
                 | 
                                    
                                                     | 
                
                 | 
                                    ),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    234
                 | 
                                    
                                                     | 
                
                 | 
                                    $data['description']  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    235
                 | 
                                    
                                                     | 
                
                 | 
                                );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    236
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    237
                 | 
                                    
                                                     | 
                
                 | 
                                // Set Keyword to UTF-8 Uppercase Words of Query  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    238
                 | 
                                    
                                                     | 
                
                 | 
                                $keyword = mb_convert_case($strtolower, MB_CASE_TITLE, 'UTF-8');  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    239
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    240
                 | 
                                    
                                                     | 
                
                 | 
                                // Highlight the Query in the Text and Delete some Text  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    241
                 | 
                                    
                                                     | 
                
                 | 
                                $text = str_replace(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    242
                 | 
                                    
                                                     | 
                
                 | 
                                    array($keyword, ' may refer to', ' steht für:'),   | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    243
                 | 
                                    
                                                     | 
                
                 | 
                                    array('<b class="hint">'.$keyword.'</b>', '', ''),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    244
                 | 
                                    
                                                     | 
                
                 | 
                                    $text  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    245
                 | 
                                    
                                                     | 
                
                 | 
                                );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    246
                 | 
                                    
                                                     | 
                
                 | 
                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    247
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    248
                 | 
                                    
                                                     | 
                
                 | 
                            // If there is no Article Text set a Default depending on selected Language  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    249
                 | 
                                    
                                                     | 
                
                 | 
                            // e.g. q=Leonardo%20di%20caprio&language=de OR q=100&language=de  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    250
                 | 
                                    
                                                     | 
                
                 | 
                            if ($text == '') { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    251
                 | 
                                    
                                                     | 
                
                 | 
                                $description = $image = '';  | 
            
                            
                    | 
                        
                     | 
                     | 
                     | 
                    
                                                                                                                                                        
                        
                         
                                                                                        
                                                                                            
                                                                                     
                     | 
                
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 
                    252
                 | 
                                    
                                                     | 
                
                View Code Duplication | 
                                if ($this->params['language'] == 'de') { | 
            
                            
                    | 
                        
                     | 
                     | 
                     | 
                    
                                                                                                    
                        
                         
                                                                                        
                                                                                     
                     | 
                
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    253
                 | 
                                    
                                                     | 
                
                 | 
                                    $text = 'Zu diesem Stichwort ist kein Artikel vorhanden.';  | 
            
                            
                    | 
                        
                     | 
                     | 
                     | 
                    
                                                                                                    
                        
                         
                                                                                        
                                                                                     
                     | 
                
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    254
                 | 
                                    
                                                     | 
                
                 | 
                                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    255
                 | 
                                    
                                                     | 
                
                 | 
                                else if($text == '') { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    256
                 | 
                                    
                                                     | 
                
                 | 
                                    $text = 'There is no article available for this keyword.';  | 
            
                            
                    | 
                        
                     | 
                     | 
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                    257
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                                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    258
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                 | 
                                return; // ONLY IF YOU WHANT NO OUTPUT !!  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    259
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                            }        | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    260
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    261
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                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    262
                 | 
                                    
                                                     | 
                
                 | 
                        // Build the HTML Output  | 
            
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 
                    263
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                View Code Duplication | 
                        if ($this->params['language']=='de') { | 
            
                            
                    | 
                        
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                | 
                    264
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                 | 
                            $moreAbout = 'Mehr über';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    265
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                 | 
                            $from = 'bei';      | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    266
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                                                     | 
                
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    267
                 | 
                                    
                                                     | 
                
                 | 
                        else  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    268
                 | 
                                    
                                                     | 
                
                 | 
                        { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    269
                 | 
                                    
                                                     | 
                
                 | 
                            $moreAbout = 'More about';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    270
                 | 
                                    
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                 | 
                            $from = 'from';      | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    271
                 | 
                                    
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                 | 
                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    272
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                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    273
                 | 
                                    
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                 | 
                        // Without any Search Result return nothing  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    274
                 | 
                                    
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                 | 
                        if ($text == '' && $description == '') { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    275
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                 | 
                            return '';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    276
                 | 
                                    
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                 | 
                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    277
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                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    278
                 | 
                                    
                                                     | 
                
                 | 
                        // With a Search Resuld build a Footer Link  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    279
                 | 
                                    
                                                     | 
                
                 | 
                        if ($text != '') { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    280
                 | 
                                    
                                                     | 
                
                 | 
                            $footer = $moreAbout.' »'.$headline.'« '.$from;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    281
                 | 
                                    
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                 | 
                            $url = 'https://'.$this->params['language'].'.wikipedia.org/wiki/'.$query;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    282
                 | 
                                    
                                                     | 
                
                 | 
                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    283
                 | 
                                    
                                                     | 
                
                 | 
                        else if ($description != '') { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    284
                 | 
                                    
                                                     | 
                
                 | 
                            // Footer Link for Suggestion-Link  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    285
                 | 
                                    
                                                     | 
                
                 | 
                            $footer = '';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    286
                 | 
                                    
                                                     | 
                
                 | 
                            $url = 'https://'.$this->params['language'].'.wikipedia.org/';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    287
                 | 
                                    
                                                     | 
                
                 | 
                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    288
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    289
                 | 
                                    
                                                     | 
                
                 | 
                        // Use the Template  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    290
                 | 
                                    
                                                     | 
                
                 | 
                        ob_start();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    291
                 | 
                                    
                                                     | 
                
                 | 
                        include 'wiki2tpl.phtm';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    292
                 | 
                                    
                                                     | 
                
                 | 
                      | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    293
                 | 
                                    
                                                     | 
                
                 | 
                        // Return the HTML  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    294
                 | 
                                    
                                                     | 
                
                 | 
                        return ob_get_clean();      | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    295
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    296
                 | 
                                    
                                                     | 
                
                 | 
                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    297
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
                | 
                    298
                 | 
                                    
                                                     | 
                
                 | 
                }  | 
            
            
                                                        
            
                                    
            
            
                | 
                    299
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                 | 
            
            
                        
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: