Code _php base of PHP batch generation thumbnail

Disadvantages: Long width of the picture will be stretched deformation, can not be intelligent cutting, need intelligent cutting, please study for yourself.
<?php
$config = Array ();
$config [' path '] = './';
$config [' t_width '] = 120;
$config [' t_height '] = 98;
$config [' ignore '] = Array ("", ".", "..");
$config [' prefix '] = "thumb_";
$done = 0;
Define ("Image_jpg", 2);
Define ("ENDL", "\ n");
if ($handle = Opendir ($config [' path '])) {
while (false!== ($file = Readdir ($handle))) {
if (!array_search ($file, $config [' ignore ']) {

List ($im _width, $im _height, $type) = getimagesize ($file);
if ($type!= image_jpg) {
Continue
}

$op. = "Found-> <a href= ' {$file} ' > $file </a>". ENDL;
$im = @imagecreatefromjpeg ($file);
if (! $im) {
$op. = "Fail-> couldn ' t create sour image pointer.". ENDL;
Continue
}

if (file_exists ($config [' prefix ']. $file) | | substr ($file, 0, strlen ($config [' prefix '])] = = $config [' prefix ']) {
$op. = "-> This file has already got a thumbnail.". ENDL;
Continue
}
$to = Imagecreatetruecolor ($config [' t_width '], $config [' t_height ']);
if (! $to) {
$op. = "Fail-> couldn ' t create dest image pointer.". ENDL;
Continue
}

if (!imagecopyresampled ($to, $im, 0, 0, 0, 0, $config [' T_width '], $config [' T_height '], $im _width, $im _height)) {
$op. = "Fail-> couldn ' t create thumbnail. PHP fail. ". ENDL;
Continue
}

Save File
Imagejpeg ($to, $config [' prefix ']. $file);
$op. = "Done-> created thumb: <a href= ' {$config [' prefix ']}{$file} ' >{$config [' prefix ']}{$file}</a> ']. ENDL;
$done + +;
}
}
}
Closedir ($handle);
$op. = "Fin-> {$done} file (s) written." ENDL;
echo "<pre>";
Echo $op;
echo "</pre>";
Exit
?>