???????????$aa= preg_replace_callback( ???????????‘/(?<=href=)([^>]*)(?=>)/i‘, ???????????function ($matches) use(&$newHref) { ???????????????return next($newHref); ???????????}, ???????????$aa ???????????);正则批量替换href内容
原文地址：https://www.cnblogs.com/loweringye/p/10184167.html