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HomeBackend DevelopmentPHP Tutorial非常简单的php验证.

请大神给段代码吧,我知道很简单,可是我试验很多方法,不是不跳转就是原地不动。怎么也搞不出来.
就是实现:输入框写邮政编码,然后验证如果是5个数字就跳转到下一页,不是5就停留在原页并且在输入框后面添加“邮政编码不对”.
感谢各位大神.


回复讨论(解决方案)

邮政编码是6位数吧?

这是个基础的表单验证,js 就搞定了。何必劳烦 php ?

js正则判断一下就可以了

<script> <br /> function iszipcode(object) <br /> { <br /> var s =document.getElementById(object.id).value; <br /> var pattern =/^[0-9]{6}$/; <br /> if(s!="") <br /> { <br /> if(!pattern.exec(s)) <br /> { <br /> alert('请输入正确的邮政编码'); <br /> object.value=""; <br /> object.focus(); <br /> } <br /> } <br /> } <br /> <br /> </script>

可以自己试着写写哦!

if(ereg('/\d{5}/',$string))echo 'Right';

楼主要的就是这个PHP?

这个用JS判断下就行了,你要求输错了再后面提示信息的话,只能用js最简单了~

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