thanks robc
<?php //$username = strtolower($_POST['member_name']); $username = "robc2236"; echo $username; $images = glob("images/{$username}/*.{jpg,jpeg,,png,gif}",GLOB_BRACE); if(isset($_GET['img'])) { if(file_exists("images/{$username}/".$_GET['img'])) { ignore_user_abort(true); set_time_limit(120); ini_set('memory_limit','512M'); $src_size = getimagesize("images/{$username}/".$_GET['img']); if($src_size === false) { die('that does not look like an image.'); } $thumb_width = 250; $thumd_height = 200; if($src_size['mime'] === 'image/jpeg') { $src = imagecreatefromjpeg("images/{$username}/".$_GET['img']); } else if($src_size['mime'] === 'image/png') { $src = imagecreatefrompng("images/{$username}/".$_GET['img']); } else if($src_size['mime'] === 'image/gif') { $src = imagecreatefromgif("images/{$username}/".$_GET['img']); } $src_aspect = round(($src_size[0]/$src_size[1]),1); $thumb_aspect = round(($thumb_width / $thumd_height),1); if($src_aspec<$thumb_aspect ) { $new_size = array($thumb_width,($thumb_width/$src_size[0]) * $src_size[1]); $src_pos = array(0,($new_size[1] - $thumb_height)/2); } else if($src_aspec>$thumb_aspect ) { $new_size = array(($thumb_width/ $src_size[1]) * $src_size[0], $thumb_height); $src_pos = array(($new_size[0] - $thumb_width)/2,0); } else { $new_size = array($thumb_width,$thumb_height); $src_pos = array(0,0); } if($new_size[0] <1) $new_size[0] =1; if($new_size[1] <1) $new_size[1] =1; $thumb = imagecreatetruecolor($thumb_width,$thumb_height); imagecopyresampled($thumb,$src,0,0,$src_pos[0],$src_pos[1],$new_size[0],$new_size[1],$src_size[0],$src_size[1]); if($src_size['mime'] === 'image/jpeg') { imagejpeg($thumb,"images/{$username}thumbs/{$_GET['img']}"); } else if($src_size['mime'] === 'image/png') { echo"test"; imagepng($thumb,"images/{$username}/thumbs/{$_GET['img']}"); } else if($src_size['mime'] === 'image/gif') { imagegif($thumb,"images/".$username."/thumbs/{$_GET['img']}"); } header("Location: images/".$username."/thumbs/{$_GET['img']}"); } die(); } if(is_dir('images/'.$username.'/thumbs')===false) { mkdir('images/'.$username.'/thumbs',0744); } ?> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Gallery</title> </head> <body> <?php //print_r($images); foreach($images as $image) { if(file_exists("images/{$username}/thumbs/{$image}")) { echo "<a href=\"\"><img src=\"/images/{$username}/thumbs/{$image}\" alt=\"{$image}\"/></a>"; } else { echo "<a href=\"\"><img src=\"?img=images/{$username}/{$image}\" alt=\"{$image}\"/></a>"; } } ?> </body> </html>