これは、apponをビルドできるPHPスクリプトで、jpg画像でのみ機能します。
ディレクトリをスキャンし、画像を適切なサイズに正規化し、その場でサムを作成します。次に更新するときに、サムディレクトリにすでに存在する画像を再処理する必要はありません。それが役に立てば幸い...
スクリプトの配置
Root>
    thisscript.php
    /images/
           someimage.jpg
           someimage2.jpg
thisscript.php
<?php
// config section
$path = "./images/";
$thpath = $path."thumbs/";
// end configration
// Open the directory
$do = dir($path);
// now check if the thumb dir is available if not, create it!!
if (!is_dir($thpath)){
    mkdir($thpath);
}
$output = '<div>';
while (($file = $do->read()) !== false){
    if (is_dir($path.$file)){
        continue;
    }else{
        $info = pathinfo($path.$file);
        $fileext = $info['extension'];
        if (strtolower($fileext) == 'jpg'){
            if (!is_file($thpath.$file)){           
                //Normalize Super lrg Image to 750x550          
                thumb_it($path, $file, $path,750,550,99);
                //Make Thumb 200x125
                thumb_it($path, $file, $thpath,200,125,99);
                $output .='<p><a href="'.$path.$file.'"><img src="'.$thpath.$file.'" title="" alt="" /></a></p>';
            }else{
                $output .='<p><a href="'.$path.$file.'"><img src="'.$thpath.$file.'" title="" alt="" /></a></p>';
            }
        }
    }
}
$output .='</div>';
echo $output;
//Functions
function thumb_it($dirn, $file, $thumbdir,$rwidth,$rheight,$quality){
    set_time_limit(0);
    $filename = $dirn.$file;
    $thfilename = $thumbdir.preg_replace('/[^a-zA-Z0-9.-]/s', '_', $file);
    // get the filename and the thumbernail directory
    if (is_file($filename)){
        // create the thumbernail from the original picture
        $im = @ImageCreateFromJPEG($filename);
        if($im==false){return false;}
        $width = ImageSx($im); // Original picture width is stored
        $height = ImageSy($im); // Original picture height is stored
        if (($width < $rwidth) && ($height < $rheight)){
            $n_height = $height;
            $n_width = $width;
        }else{
            // saveing the aspect ratio
            $aspect_x = $width / $rwidth;
            $aspect_y = $height / $rheight;
            if ($aspect_x > $aspect_y){
                $n_width = $rwidth;
                $n_height = $height / $aspect_x;
            }else{
                $n_height = $rheight;
                $n_width = $width / $aspect_y;
            }
        }
        $newimage = imagecreatetruecolor($n_width, $n_height);
        // resizing the picture
        imageCopyResized($newimage, $im, 0, 0, 0, 0, $n_width, $n_height, $width, $height);
        // writing to file the thumbnail
        if(file_exists($thfilename)){chmod($thfilename, 0777);}
        Imagejpeg($newimage, $thfilename, $quality);
        imagedestroy($newimage);
        imagedestroy($im);
    }
}
?>