Code example for php batch scaling of images

;Translate the image format using the original image size
[Translation]
width=0
height=0
;Stretch the image to the specified size
[Stretch]
width=800
height=600
;Zoom the image to the specified Width with height auto size
[AutoHeight]
width=740
height= 0
;Zoom the image to the specified Height with width auto size
[AutoWidth]
width=0
height=380
*/ ?>

2. PHP code for zooming pictures The variable classes is an array that can select any number of settings specified in the ini file.

/**
* Batch bloom pictures
* edit bbs.it-home.org
* at 2013/5/15
*/
$oimg = "test.jpg";//Original image name
$classes = array('Translation','AutoHeight','AutoWidth ','Stretch');//Give classes for the new creating images' size which are defined in the specified
ini file
$suffix = 'jpg';//The new image's suffix
$inifile = 'image.ini. php';

$size = getimagesize($oimg);
$x = $size[0]/$size[1];
$name = explode('.',$oimg);

if(!file_exists ($inifile)) die('Ini file does not exist!');
$cn = parse_ini_file($inifile,true);//Parse the class style image size from ini file
foreach($classes as $class){
 foreach($cn as $k=>$v){
 if($k==$class){
 if($v['width'] && $v['height']){
 $thumbWidth = $v['width'];
 $thumbHeight = $v['height'];
 }elseif($v['width']){
 $thumbWidth = $v['width'];
 $thumbHeight = round ($thumbWidth/$x);
 }elseif($v['height']){
 $thumbHeight = $v['height'];
 $thumbWidth = round($thumbHeight*$x);
 }else{
 $thumbWidth = $size[0];
 $thumbHeight = $size[1];
 }
 break;
 }
 }
 if(!isset($thumbHeight) && !isset($thumbWidth)) die('Ini file Settings error!');

 $nimg = $name[0].'_'.$class.'.'.$suffix;//New image file name
 $source = imagecreatefromjpeg($oimg);
 $ thumb = imagecreatetruecolor($thumbWidth, $thumbHeight);
 imagecopyresampled($thumb,$source,0,0,0,0,$thumbWidth,$thumbHeight,$size[0],$size[1]);

 if ($suffix=='jpg') $method = 'imagejpeg';
 else $method='image'.$suffix;
 $method($thumb, $nimg);
 imagedestroy($thumb);//Release the image source
 imagedestroy($source);
}
?>

php has a function specifically for processing images. For some more demanding image scaling, php can also do it.

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