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求正则表达式 计算字符串长度解决思路

WBOY
WBOYOriginal
2016-06-13 13:25:26854browse

求正则表达式 计算字符串长度
$str = "asd你好[哈哈][你好][]"
计算符号包括里面[]的个数
$str长度应该是2个：[]符号里面没有内容不被计算
$strstr = "asd你好[哈哈][你好]"
长度也是2个

------解决方案--------------------

PHP code

preg_match_all("@\[.*?\]@",$strstr,$result);
echo count($result[0]) <div class="clear">
                 
              
              
        
            </div>
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