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求解一个php正则表达式的组合,该如何解决

WBOY
WBOYOriginal
2016-06-13 13:34:26965browse

求解一个php正则表达式的组合
(.*?) 这个匹配是是任意多个字符 为什么不直接(*?)

------解决方案--------------------
你是想说为什么不用“.*”吧?
看下面例子:

PHP code

$str = 'aabab';
$pattern1 = '/a.*b/';    //匹配出aabab
$pattern2 = '/a.*?b/';   //匹配出aab <div class="clear">
                 
              
              
        
            </div>
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