嵌套正则写法,该怎么解决

嵌套正则写法

PHP code

<!--

Code highlighting produced by Actipro CodeHighlighter (freeware)
http://www.CodeHighlighter.com/

-->
$string = "some text (a(b(c)d)e) more text"; 
if(preg_match("/\((?>[^()]+|(?R))*\)/",$string,$matches)) 
{ 
echo "<pre class="brush:php;toolbar:false">"; print_r($matches); echo "

Copier après la connexion

"; }

PHP code

<?php $string = 'some text <tag:cate name="a">a<cate name="b">b<cate>c</cate>d</cate>e more text';
preg_match("/<cate name='\"\w+\")?'>(?>\w+|(?R))*/",$string,$matches) &&
    print_r($matches); <div class="clear">
                 
              
              
        
            </div></cate>

Copier après la connexion