php 進行圖片裁剪

<?php

$src_path = '1.jpg';
//創建源圖的實例
$src = imagecreatefromstring(file_get_contents($src_path));
//裁剪開區域左上角的點的坐標
$x = 100;
$y = 12;
//裁剪區域的寬和高
$width = 200;
$height = 200;
//最終保存成圖片的寬和高，和源要等比例，否則會變形
$final_width = 100;
$final_height = round($final_width * $height / $width);

//將裁剪區域復制到新圖片上，並根據源和目標的寬高進行縮放或者拉升
$new_image = imagecreatetruecolor($final_width, $final_height);
imagecopyresampled($new_image, $src, 0, 0, $x, $y, $final_width, $final_height, $width, $height);

//輸出圖片
header('Content-Type: image/jpeg');
imagejpeg($new_image);

imagedestroy($src);
imagedestroy($new_image);

 

原文地址：https://www.jb51.net/article/44828.htm