| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  * **************************************************************************** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  * references - MODULE FOR XOOPS | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  * Copyright (c) Hervé Thouzard of Instant Zero (http://www.instant-zero.com) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  * You may not change or alter any portion of this comment or credits | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  * of supporting developers from this source code or any supporting source code | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |  * which is considered copyrighted (c) material of the original comment or credit authors. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  * This program is distributed in the hope that it will be useful, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |  * but WITHOUT ANY WARRANTY; without even the implied warranty of | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |  * @copyright       Hervé Thouzard of Instant Zero (http://www.instant-zero.com) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |  * @license         http://www.fsf.org/copyleft/gpl.html GNU public license | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |  * @package         references | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |  * @author          Hervé Thouzard of Instant Zero (http://www.instant-zero.com) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |  * **************************************************************************** | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 21 |  |  |  */ | 
            
                                                                        
                            
            
                                    
            
            
                | 22 |  |  | class references_registryfile | 
            
                                                                        
                            
            
                                    
            
            
                | 23 |  |  | { | 
            
                                                                        
                            
            
                                    
            
            
                | 24 |  |  |     public $filename;    // Nom du fichier � traiter | 
            
                                                                        
                            
            
                                    
            
            
                | 25 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 26 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 27 |  |  |      * Access the only instance of this class | 
            
                                                                        
                            
            
                                    
            
            
                | 28 |  |  |      * | 
            
                                                                        
                            
            
                                    
            
            
                | 29 |  |  |      * @return object | 
            
                                                                        
                            
            
                                    
            
            
                | 30 |  |  |      * | 
            
                                                                        
                            
            
                                    
            
            
                | 31 |  |  |      * @static | 
            
                                                                        
                            
            
                                    
            
            
                | 32 |  |  |      * @staticvar   object | 
            
                                                                        
                            
            
                                    
            
            
                | 33 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |     public static function getInstance() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |         static $instance; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |         if (null === $instance) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |             $instance = new static(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |         return $instance; | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 42 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 43 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |     public function __construct($fichier = null) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |         $this->setfile($fichier); | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 47 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 48 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |     public function setfile($fichier = null) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |         if ($fichier) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |             $this->filename = XOOPS_UPLOAD_PATH . DIRECTORY_SEPARATOR . $fichier; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |         } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 54 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 55 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |     public function getfile($fichier = null) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |         $fw = ''; | 
                            
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                | 59 |  | View Code Duplication |         if (!$fichier) { | 
                            
                    |  |  |  | 
                                                                                        
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                | 60 |  |  |             $fw = $this->filename; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |         } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |             $fw = XOOPS_UPLOAD_PATH . DIRECTORY_SEPARATOR . $fichier; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |         if (file_exists($fw)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |             return file_get_contents($fw); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |         } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |             return ''; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |         } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 69 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 70 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |     public function savefile($content, $fichier = null) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |         $fw = ''; | 
                            
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                | 74 |  | View Code Duplication |         if (!$fichier) { | 
                            
                    |  |  |  | 
                                                                                        
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                | 75 |  |  |             $fw = $this->filename; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |         } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |             $fw = XOOPS_UPLOAD_PATH . DIRECTORY_SEPARATOR . $fichier; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |         if (file_exists($fw)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |             @unlink($fw); | 
                            
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                | 81 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |         $fp = fopen($fw, 'w') || exit('Error, impossible to create the file ' . $this->filename); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |         fwrite($fp, $content); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |         fclose($fp); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |         return true; | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 87 |  |  |     } | 
            
                                                        
            
                                    
            
            
                | 88 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 89 |  |  |  | 
            
                        
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVarassignment in line 1 and the$higherassignment in line 2 are dead. The first because$myVaris never used and the second because$higheris always overwritten for every possible time line.