Parse the usage of PHP SPL standard library (traverse directories and find files with fixed conditions)_PHP Tutorial

 class RecursiveFileFilterIterator extends FilterIterator {
     // 满足条件的扩展名
     protected $ext = array('jpg','gif');

     /**
* Provide $path and generate the corresponding directory iterator
*/
     public function __construct($path) {
         parent::__construct(new RecursiveIteratorIterator(new RecursiveDirectoryIterator($path)));
     }

     /**
* Check whether the file extension meets the conditions
*/
     public function accept() {
         $item = $this->getInnerIterator();
         if ($item->isFile() && 
                 in_array(pathinfo($item->getFilename(), PATHINFO_EXTENSION), $this->ext)) {
             return TRUE;
         }
     }
 }

 // 实例化
 foreach (new RecursiveFileFilterIterator('D:/history') as $item) {
     echo $item . PHP_EOL;
 }

http://www.bkjia.com/PHPjc/327702.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/327702.htmlTechArticle?php class RecursiveFileFilterIterator extends FilterIterator { // 满足条件的扩展名 protected $ext = array('jpg','gif'); /** * 提供 $path 并生成对应的目录迭代器...