常用正则表达式整理（持续更新中）

常用正则表达式整理（持续更新中）

1、替换商品详情中图片的高和宽

1 $str = '<p><img src="/uploads/20190308/FuwOxhHmoE8JP1rA_kg2JDTMFsGf.jpg" alt="" width="500" height="481" />
2 <img src="/uploads/20190308/FjGfFmn4_9XskCQ4rwSJ6EayDHfA.jpg" alt="" width="500" height="481" />
3 <img src="/uploads/20190308/Fvf3IzrGs-_0ak8hztGjlWc4IR1T.png" alt="" width="500" height="441" /></p>';
4 echo $str;
5 $str = preg_replace('/\bwidth="(\d+)"/', 'width="100%"', $str);
6 $str = preg_replace('/\bheight="(\d+)"/', 'height="100%"', $str);
7 echo $str;die;