php如何裁剪图片？php图片剪切代码

$src_path = '1.jpg'; 
//创建源图实例 
$src = imagecreatefromstring(file_get_contents($src_path)); 
  
//裁剪开区域左上角的点的坐标 
$x = 100; 
$y = 12; 
//裁剪区域的宽和高 
$width = 200; 
$height = 200; 
//最终保存成图片的宽和高，和源要等比例，否则会变形 
$final_width = 100; 
$final_height = round($final_width * $height / $width); 
  
//将裁剪区域复制到新图片上，并根据源和目标的宽高进行缩放或者拉升 
$new_image = imagecreatetruecolor($final_width, $final_height); 
imagecopyresampled($new_image, $src, 0, 0, $x, $y, $final_width, $final_height, $width, $height); 
  
//输出图片 
header('Content-Type: image/jpeg'); 
imagejpeg($new_image); 
  
imagedestroy($src); 
imagedestroy($new_image);