PHP学习笔记9-生成图片

 1 <?php
 2 /**
 3  * Created by PhpStorm.
 4  * User: Administrator
 5  * Date: 2015/6/29
 6  * Time: 21:25
 7  */
 8 header(‘Content-type:image/png‘);//设置mime type
 9 $img = imagecreate(400,300);//设置图片像素
10 imagecolorallocate($img,255,255,255);//给图片上色
11 imageellipse($img,200,200,50,50,imagecolorallocate($img,255,0,0));//在图片上绘制图形，中心点200,200；宽高50,50
12 imagepng($img);//设置图片格式为PNG