<?php
$string='[b]??? ?? ?? ????[/b]
[i]??? ?? ???? ?? ????[/i]
$pattern=array(
'/[b ](.*)[/b]/i',
'/[i](.*)[/i]/iU',
);
$replace=array(
'<b> \1</b><br />',
'<i>\1</i><br />',
);
$ubb=preg_replace($pattern,$ replacement,$string);
echo $ubb;
? \1? (.*)? ??? ?? ?????? ? ?
1
0
0
![[? ?????] Node.js ?? ??](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
