PHP regular implementation of image replacement

How to replace images with regular images in php: first specify the web page and start curl; then execute a curl session; then perform regular matching; finally match all img and implement replacement.

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The operating environment of this tutorial: Windows 7 system, PHP version 5.6, This method works for all brands of computers.

php regex extracts images and replaces

<?php
//  指定网页
$url = "http://aihuinong.com/goods/";
//  启动curl
$ch = curl_init();
//  CURLOPT_URL: 这是你想用PHP取回的URL地址。你也可以在用curl_init()函数初始化时设置这个选项。
curl_setopt ($ch, CURLOPT_URL, $url);
//（后面参数为1时） 如果成功只将结果返回，不自动输出任何内容。如果失败返回FALSE
//（后面参数为0时） 如果成功只返回TRUE，自动输出返回的内容。如果失败返回FALSE
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
//  CURLOPT_CONNECTTIMEOUT 在发起连接前等待的时间，如果设置为0，则不等待。
curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT,10);
//  curl_exec — 执行一个curl会话
$dxycontent = curl_exec($ch);
//  匹配class="yt-goods-nav" - class="pagination"之间的内容
$pattern = &#39;/<div class="yt-goods-nav">(.+?)<div class="pagination" style="float: right">/is&#39;;
//  执行正则匹配
preg_match($pattern, $dxycontent, $match);
//var_dump($match[0]);
//$match[0] 即为<div class="yt-goods-nav">和<div class="pagination">之间的所有源码
//  匹配所有的img
preg_match_all(&#39;/<img.+src=\"?(.+\.(jpg|gif|bmp|bnp|png))\"?.+>/i&#39;,
$match[0],$matches);//带引号
$new_arr=array_unique($matches[0]);//去除数组中重复的值
//
foreach($new_arr as $key) {
//strip_tags($key);
//由于这个网站的路径的域名被隐藏 所以直接替换/为域名/
echo preg_replace(&#39;#src="/#is&#39;, &#39;src="http://aihuinong.com/&#39;, $key);
echo "</br>";
}

I have nothing to do today, so I played with regex. Take a look at the pictures on your company website.

The comments in the code are clearly written.

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