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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /* For licensing terms, see /license.txt */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Chamilo\CoreBundle\Component\Utils;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Class ChamiloApi  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @package Chamilo\CoreBundle\Component  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class ChamiloApi  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private static $configuration;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * ChamiloApi constructor.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param $configuration  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function __construct(array $configuration)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        self::$configuration = $configuration;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return array  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public static function getConfigurationArray()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return self::$configuration;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $variable  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return bool|string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public static function getConfigurationValue($variable)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $configuration = self::getConfigurationArray();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (array_key_exists($variable, $configuration)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return $configuration[$variable];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return false;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Returns an array of resolutions that can be used for the conversion of documents to images  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return array  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public static function getDocumentConversionSizes()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return array(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            '540x405' => '540x405 (3/4)',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            '640x480' => '640x480 (3/4)',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            '720x540' => '720x540 (3/4)',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            '800x600' => '800x600 (3/4)',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            '1024x576' => '1024x576 (16/9)',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            '1024x768' => '1000x750 (3/4)',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            '1280x720' => '1280x720 (16/9)',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            '1280x860' => '1280x960 (3/4)',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            '1400x1050' => '1400x1050 (3/4)',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            '1600x900' => '1600x900 (16/9)',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Get the platform logo path  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return null|string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public static function getWebPlatformLogoPath()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $theme = api_get_visual_theme();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $accessUrlId = api_get_current_access_url_id();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $customLogoPath = "themes/$theme/images/header-logo-custom$accessUrlId.png";  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (file_exists(api_get_path(SYS_PUBLIC_PATH) . "css/$customLogoPath")) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return api_get_path(WEB_CSS_PATH) . $customLogoPath;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $originalLogoPath = "themes/$theme/images/header-logo.png";  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (file_exists(api_get_path(SYS_CSS_PATH) . $originalLogoPath)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return api_get_path(WEB_CSS_PATH) . $originalLogoPath;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return null;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Get the platform logo.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Return a <img> if the logo image exists. Otherwise return a <h2> with the institution name.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param array $imageAttributes Optional.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return string  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    public static function getPlatformLogo($imageAttributes = [])  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $logoPath = self::getWebPlatformLogoPath();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $institution = api_get_setting('Institution'); | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $institutionUrl = api_get_setting('InstitutionUrl'); | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $siteName = api_get_setting('siteName'); | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if ($logoPath === null) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $headerLogo = \Display::url($siteName, api_get_path(WEB_PATH) . 'index.php');  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            if (!empty($institutionUrl) && !empty($institution)) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                                $headerLogo .= ' - ' . \Display::url($institution, $institutionUrl);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $courseInfo = api_get_course_info();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            if (isset($courseInfo['extLink']) && !empty($courseInfo['extLink']['name'])) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                                $headerLogo .= '<span class="extLinkSeparator"> - </span>';  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                if (!empty($courseInfo['extLink']['url'])) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                                    $headerLogo .= \Display::url(  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                        $courseInfo['extLink']['name'],  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                        $courseInfo['extLink']['url'],  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                        ['class' => 'extLink']  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                    );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                } else if (!empty($courseInfo['extLink']['url'])) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                                    $headerLogo .= $courseInfo['extLink']['url'];  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            return \Display::tag('h2', $headerLogo, ['class' => 'text-left']); | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $image = \Display::img($logoPath, $institution, $imageAttributes);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        return \Display::url($image, api_get_path(WEB_PATH) . 'index.php');  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Like strip_tags(), but leaves an additional space and removes only the given tags  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    136
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                     * @param array $tags Tags to be removed  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    137
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                     * @return  string The original string without the given tags  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    138
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                     */  | 
            
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
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                    139
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                View Code Duplication | 
                    public static function stripGivenTags($string, $tags)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    140
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    141
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                        foreach ($tags as $tag) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    142
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                            $string2 = preg_replace('#</' . $tag . '[^>]*>#i', ' ', $string); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    143
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                            if ($string2 != $string) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    144
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                                $string = preg_replace('/<' . $tag . '[^>]*>/i', ' ', $string2); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    145
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    146
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    147
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                        return $string;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    148
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    149
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    150
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                     * Adds or Subtract a time in hh:mm:ss to a datetime  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    151
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                     * @param string $time Time in hh:mm:ss format  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    152
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                     * @param string $datetime Datetime as accepted by the Datetime class constructor  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    153
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                     * @param bool $operation True for Add, False to Subtract  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    154
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                     * @return string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    155
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    156
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                    public static function addOrSubTimeToDateTime($time, $datetime = 'now', $operation = true)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    157
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    158
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                        $date = new \DateTime($datetime);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    159
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                    160
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                        $hours = $minutes = $seconds = 0;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    161
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                    162
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                        sscanf($time, "%d:%d:%d", $hours, $minutes, $seconds);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    163
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                    164
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                        $timeSeconds = isset($seconds) ? $hours * 3600 + $minutes * 60 + $seconds : $hours * 60 + $minutes;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    165
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                    166
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                        if ($operation) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    167
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                            $date->add(new \DateInterval('PT' . $timeSeconds . 'S')); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    168
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                        } else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    169
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                            $date->sub(new \DateInterval('PT' . $timeSeconds . 'S')); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    170
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    171
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                    172
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                | 
                    173
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                 | 
                        return $date->format('Y-m-d H:i:s'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    174
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    175
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                 | 
                }  | 
            
            
                                                        
            
                                    
            
            
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                    176
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