php如何添加图片

echo &#39;<img src=&#39;1.gir&#39; width="100" height="100">&#39;;

<?php
$height = 300;
$width = 300;
//创建背景图
$im = ImageCreateTrueColor($width, $height);
//分配颜色
$white = ImageColorAllocate ($im, 255, 255, 255);
$blue = ImageColorAllocate ($im, 0, 0, 64);
//绘制颜色至图像中
ImageFill($im, 0, 0, $blue);
//绘制字符串：Hello,PHP
ImageString($im, 10, 100, 120, &#39;Hello,PHP&#39;, $white);
//输出图像，定义头
Header (&#39;Content-type: image/png&#39;);
//将图像发送至浏览器
ImagePng($im);
//清除资源
ImageDestroy($im);
?>