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PHP批量生成缩略图的代码

WBOY
WBOYOriginal
2016-06-13 12:28:00851browse

缺点:长宽不一的图片会被拉伸变形,不能智能裁切,需要智能裁切的,请自行研究。
$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; 


//保存文件 
imagejpeg($to, $config['prefix'] . $file); 
$op .= "done -> created thumb: {$config['prefix']}{$file}" . ENDL; 
$done++; 



closedir($handle); 
$op .= "fin -> {$done} file(s) written" . ENDL; 
echo "

";  
echo $op; 
echo "
"; 
exit; 
?>
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