琉璃鯨魚

<?
    $max = 160; //max height & width
    $maxCols = 3;
    $path = "my/date/"; //the directory ya want to show
    $AutorisedImageType = array ("jpg", "jpeg"); //image types
?>
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<?
   // Open path
   $p = opendir($path);
   while (false !== ($filename = readdir($p))) {
       $filesArray[] = $filename;
   }

   // Display and resize
   foreach ($filesArray as $images) {
  
       $ext = substr($images, strpos($images, ".")+1, strlen($images));
      
       if( in_array($ext, $AutorisedImageType) ) {

           list($width, $height, $type, $attr) = @getimagesize( $path.$images );

            $xRatio = $max / $width;
            $yRatio = $max / $height;
           
            if ( ($width <= $max) && ($height <= $max) ) {
              $newWidth = $width;
              $newHeight = $height;
            }
            else if (($xRatio * $height) < $max) {
              $newHeight = ceil($xRatio * $height);
              $newWidth = $max;
            }
            else {
              $newWidth = ceil($yRatio * $width);
              $newHeight = $max;
            }
          
           if($i == $maxCols) {
               echo "</tr><tr>";
               $i = 0;
           }
           echo "<td align='center' valign='baseline' width='$max' height='$max'>
     <a href='".$path.$images."' target='_blank'><img src='".$path.$images."' width='$newWidth' height='$newHeight' border='0'></a>
     <br/>點擊看原圖</td>";
           $i++;
       }
   }
              if($i <= 0) { //補充 ：資料夾內無指定檔案
               echo "<td align='center' valign='middle'><font size='5' >暫無檔案</font></td>";
               $i = 0;}

?>

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參考PHP:readdir
本程式不能讀取子資料夾