一个正则表达式的问题,数字的个数写1就可以匹配上,写比1大的就匹配不上了。
正则如下:
<br />$patten='/^[1-9]\d{5}[1-2]\d{3}((0\d)|(1[0-2]))(([0|1|2]\d)|3[0-1])\d{4}$/';//就是最后这个4<br />
如果把最后那个4改成1,就能匹配的上,改成比1大的就不行了
这个正则是想用来匹配身份证号码的,如果哪位大侠有的话希望能发出来借鉴一下~兼容15位和18位的~
------解决方案--------------------
1、身份证号码含义:
一代(现已淘汰,不必判断了)
地区代码(6位)出生年(2位)出生月(2位)出生日(2位)顺号(3位) 共15位
二代
地区代码(6位)出生年(4位)出生月(2位)出生日(2位)顺号(3位)校验位(1位) 共18位
校验位可能是 X
2、简单判定,只需判断位数是否正确即可
/^\d{15}(?:\d{2}[\dX])?$/
3、精确判定(二代)应使用校验码生成算法。各种语言的“身份证校验码生成函数”都可以在网上找到
------解决方案--------------------
validateidnumber( "22111111111234563" );
用字符串,数值的话就越界了
本来身份证号就应该是字符串

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