这篇文章主要介绍了PHP正则解析多重循环模板,结合实例形式分析了php基于正则的循环遍历与解析相关操作技巧,需要的朋友可以参考下
本文实例讲述了PHP正则解析多重循环模板。分享给大家供大家参考,具体如下:
$str = "客户您好,为您推荐以下项目:(crm{项目2:项目名称} (crm{项目3:项目名称}crm) crm)以及(crm{项目1:项目名称}crm)"; $start = '(crm'; //循环开始标记 $end = 'crm)'; //循环结束标记 //循环标记,需要转移的符号,前面需要加入转义符 '\' $need_escape = array('^', '$', '(', ')', '.', '[', ']', '|', '*', '?', '+', '/', '{', '}'); foreach($need_escape as $val) { if(strpos($start, $val) !== FALSE)//存在需要转义的符号 { $escape = '\\'.$val; $start = str_replace($val, $escape, $start); } if(strpos($end, $val) !== FALSE)//存在需要转义的符号 { $escape = '\\'.$val; $end = str_replace($val, $escape, $end); } } /*---------------------------------- * 正则解析出【没有子循环】的【循环】 * 【没有子循环】:不包含循环开始标记 * 【循环】:被循环标记包含(开始标记、结束标记) * ---------------------------------*/ //$pattern = '/\(crm((?!\(crm).)+crm\)/U'; $pattern = '/'.$start.'((?!'.$start.').)+'.$end.'/U'; preg_match_all($pattern, $str, $matches); echo "<pre class="brush:php;toolbar:false">"; print_r($matches); echo "";
运行结果:
Array
(
[0] => Array
(
[0] => (crm{项目3:项目名称}crm)
[1] => (crm{项目1:项目名称}crm)
)
[1] => Array
(
[0] => }
[1] => }
)
)
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