php 图像拼接

 1 <?php 
 2     $bigphoto = "big.jpg";
 3     $footerphoto = "1.jpg";
 4     $biginfo = getimagesize($bigphoto);
 5     $footerinfo = getimagesize($footerphoto);
 6      
 7     $bigwidth = $biginfo[0];
 8     $bigheight = $biginfo[1];
 9      
10     $footerwidth = $footerinfo[0];
11     $footerheight= $footerinfo[1];
12      
13     $initwidth = max(array($bigwidth,$footerwidth));
14     $initheight = max(array($bigheight,$footerheight))+ min(array($bigheight,$footerheight));
15      
16     header("Content-type: image/jpeg");     
17     $im = imagecreatetruecolor($initwidth,$initheight); 
18     imagecopyresized($im,imagecreatefromjpeg($bigphoto),0, 0, 0, 0,$bigwidth,$bigheight,$bigwidth,$bigheight);  
19     imagecopyresized($im,imagecreatefromjpeg($footerphoto),0,$bigheight, 0, 0,$footerwidth,$footerheight,$footerwidth,$footerheight);
20     imagejpeg($im);
21 ?>