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php 数字-字母和数字混合正则验证表达式

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Release: 2016-06-08 17:27:07
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<script>ec(2);</script>
 代码如下 复制代码
$str = '1-8732dsef83dfrese8732DEef83dfrESe';

//有朋友这样写的

 代码如下 复制代码
var_dump(preg_match('/[0-9]+-[a-zA-Z0-9]{32}/',$str));


//可能存在的问题

 代码如下 复制代码
$str= 'www1-8732dsef83dfrese8fdsfds3dfrESe-wfds111cn.netee';
$str = 'wwwfsdgwww.111cn.netwww1-873dfsfds32DEef83dfrESe-weeee';
//这两种形式的都会认为是匹配的。
//所以你应该修改成
var_dump(preg_match('/^[0-9]+-[a-zA-Z0-9]{32}$/',$str));

//正确的方法是

 代码如下 复制代码
var_dump(preg_match('/^[0-9]+-[a-zA-Z0-9]{32}$/',$str));

//看看其它的方法 正则表达式(汉字,字母,数字 混合验证)
/*
首位汉字,  
  2-4位为字母,  
  第5位汉字,  
  6-14位为数字,  
  最后一位为汉字

*/

 代码如下 复制代码

[u4e00-u9fa5]{1}[a-za-z]{2,4}[u4e00-u9fa5]{5}[0-9]{6,14}[u4e00-u9fa5]{1}

^[u4e00-u9fa5uf900-ufa2d][a-za-z]{3}[u4e00-u9fa5uf900-ufa2d]d{9}[u4e00-u9fa5uf900-ufa2d]$  

 

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