phppreg_match_all匹配文章中图片

2. $con = file_get_contents("http://bbs.it-home.org/news/jb-1.html");
3. $pattern="/<[img|IMG].*?src=[\'|\"](.*?(?:[\.gif|\.jpg|\.png]))[\'|\"].*?[\/]?>/";
4. preg_match_all($pattern,$con,$match);
5. print_r($match);
6. ?>

输出结果： Array ( [0] => Array ( [0] => [1] => [2] => ) [1] => Array ( [0] => https://img.gxlcms.com//Uploads-s/new/2019-09-22-201922/logo.png [1] => https://img.gxlcms.com//Uploads-s/new/2019-09-22-201922/531656480.jpg [2] => https://img.gxlcms.com//Uploads-s/new/2019-09-22-201922/2647136297.jpg ) )