php批量缩放图片的代码举例

3. ;Translate the image format using the original image size

4. [Translation]
5. width=0
6. height=0

7. ;Stretch the image to the specified size

8. [Stretch]
9. width=800
10. height=600

11. ;Zoom the image to the specified Width with height auto size

12. [AutoHeight]
13. width=740
14. height=0

15. ;Zoom the image to the specified Height with width auto size

16. [AutoWidth]
17. width=0
18. height=380
19. */ ?>

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2、缩放图片的php代码 变量classes是一个数组，可以选择任意多个ini文件中指定的设置。

2. /**
3. * 批量绽放图片
4. * edit bbs.it-home.org
5. * at 2013/5/15
6. */
7. $oimg = "test.jpg";//Original image name
8. $classes = array('Translation','AutoHeight','AutoWidth','Stretch');//Give classes for the new creating images' size which are defined in the specified
9. ini file
10. $suffix = 'jpg';//The new image's suffix
11. $inifile = 'image.ini.php';
13. $size = getimagesize($oimg);
14. $x = $size[0]/$size[1];
15. $name = explode('.',$oimg);
17. if(!file_exists($inifile)) die('Ini file does not exist!');
18. $cn = parse_ini_file($inifile,true);//Parse the class style image size from ini file
19. foreach($classes as $class){
20. foreach($cn as $k=>$v){
21. if($k==$class){
22. if($v['width'] && $v['height']){
23. $thumbWidth = $v['width'];
24. $thumbHeight = $v['height'];
25. }elseif($v['width']){
26. $thumbWidth = $v['width'];
27. $thumbHeight = round($thumbWidth/$x);
28. }elseif($v['height']){
29. $thumbHeight = $v['height'];
30. $thumbWidth = round($thumbHeight*$x);
31. }else{
32. $thumbWidth = $size[0];
33. $thumbHeight = $size[1];
34. }
35. break;
36. }
37. }
38. if(!isset($thumbHeight) && !isset($thumbWidth)) die('Ini file Settings error!');
40. $nimg = $name[0].'_'.$class.'.'.$suffix;//New image file name
41. $source = imagecreatefromjpeg($oimg);
42. $thumb = imagecreatetruecolor($thumbWidth, $thumbHeight);
43. imagecopyresampled($thumb,$source,0,0,0,0,$thumbWidth,$thumbHeight,$size[0],$size[1]);
45. if($suffix=='jpg') $method = 'imagejpeg';
46. else $method='image'.$suffix;
47. $method($thumb, $nimg);
48. imagedestroy($thumb);//Release the image source
49. imagedestroy($source);
50. }
51. ?>

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php有专门处理图片的函数，对于一些要求较高的图片缩放，php也能做到。

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