Generate thumbnails PHP code to batch generate thumbnails

Disadvantages: Pictures with different lengths and widths will be stretched and deformed, and cannot be intelligently cropped. If you need intelligent cropping, please do your own research.
$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 -> $file" . 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 .= "note -> 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)) {
$op .= "fail -> couldn't create thumbnail. php fail." . ENDL;
continue;
}
//Save the file
imagejpeg($to, $config ['prefix'] . $file);
$op .= "done -> created thumb: {$config[' prefix']}{$file}" . ENDL;
$done++;
}
}
}
closedir($handle);
$op .= "fin -> {$done} file( s) written" . ENDL;
echo "

"; <br>echo $op; <br>echo "

";
exit;
?>

The above has introduced the code for generating thumbnails in batches with PHP, including the content of generating thumbnails. I hope it will be helpful to friends who are interested in PHP tutorials.