PHP rewinddir() º¯Êý

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<?php
$dir = "/images/";

// ´ò¿ªÄ¿Â¼£¬È»ºó¶ÁÈ¡ÆäÄÚÈÝ
if (is_dir($dir)){
  if ($dh = opendir($dir)){
    // Áгö images Ŀ¼ÖеÄÎļþ
    while (($file = readdir($dh)) !== false){
      echo "filename:" . $file . "<br>";
    }
    rewinddir();
    // ÔÙ´ÎÁгö images Ŀ¼ÖеÄÎļþ
    while (($file = readdir($dh)) !== false){
      echo "filename:" . $file . "<br>";
    }
    closedir($dh);
  }
}
?>

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filename: cat.gif
filename: dog.gif
filename: horse.gif
filename: cat.gif
filename: dog.gif
filename: horse.gif

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rewinddir() º¯ÊýÖØÖÃÓÉ opendir() ´´½¨µÄĿ¼¾ä±ú¡£

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rewinddir(dir_handle);
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dir_handle

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