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How to replace imgsrc address parameter in php

藏色散人
Release: 2023-03-02 17:18:01
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php替换imgsrc的方法:首先定义一个“get_img_thumb_url”方法;然后通过正则替换Img中src地址参数;最后将图片地址替换成压缩URL即可。

How to replace imgsrc address parameter in php

PHP实现用正则替换Img中src地址参数

在实际开发过程,我们往往需要PHP动态的去改变图片参数去达到图片压缩,或者图片裁剪功能,但是已经入库的老图片代码,如何能解决裁剪和压缩,这就用到了正则替换

/**
* 图片地址替换成压缩URL
* @param string $content 内容
* @param string $suffix 后缀
*/
function get_img_thumb_url($content="",$suffix="-256E35")
{
$pregRule = "/<[img|IMG].*?src=[\&#39;|\"](.*?(?:[\.jpg|\.jpeg|\.png|\.gif|\.bmp]))[\&#39;|\"].*?[\/]?>/";
$content = preg_replace($pregRule, &#39;<img src="${1}&#39;.$suffix.&#39;">&#39;, $content);
return $content;
}
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输出结果:

<img src="https://www.xxx.com/styles/images/default.jpg-256E35">
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