关于正则

[3FFF]

<!--123-->如何用正则去掉注释<!---->.保留123.谢谢~

[qq120848369]

[User:root Time:17:23:03 Path:/home/liangdong/php]$ php preg.php 
123
456
[User:root Time:17:23:04 Path:/home/liangdong/php]$ cat preg.php 
<?php
$str = '9kdasf<!--123-->d8asdkM\n<!--456-->addf';
$nmatches = preg_match_all('/<!--(.*)-->/Uis', $str, $matches);
if ($nmatches) {
        foreach ($matches[1] as $content) {
                echo $content . PHP_EOL;
        }
}
?>

[酱油党]

[Quote=引用 1 楼 的回复:]

PHP code
[User:root Time:17:23:03 Path:/home/liangdong/php]$ php preg.php
123
456
[User:root Time:17:23:04 Path:/home/liangdong/php]$ cat preg.php
<?php
$str = '9kdasf<!--123-->d8asdkM\n<!--456-->……
[/Quote]
PHP code