测试表单输入是jquery和php的1或2位整数 [英] test if a form input is a 1 or 2 digit integer with jquery and php

问题描述

我的表单有五个字段都设置为maxlength =2。

I have a form that has five fields that are all set to maxlength="2".

基本上，我想要输入的唯一值是一个或两位数的整数，因为在值存储在数据库之前对这些字段执行计算。

Basically, i want the only values that can be entered to either be a one or two digit integer, because calculations are performed on these fields before the values are stored in the database.

是否有任何jquery不会让用户甚至输入一个不是整数的值？

Is there any jquery that will not let a user even enter a value that isnt an integer?

同样用jquery和php验证这个的最佳方法是什么？我找到了一些方法，但我需要确保其安全，避免字符，-2，.1等

Also what would be the best way to validate this with both jquery and php? I have found some ways of doing it, but i need to make sure its secure, avoiding characters, -2, .1 etc

已解决

对于我使用的php部分

For the php part i used

if(!ctype_digit($_POST['value']))

只允许正整数

对于javascript

And for javascript

 $('.inputQuantity').keyup(function(){ 
    this.value = this.value.replace(/[^0-9\.]/g,'');
});

删除输入字段中不是数字的任何条目。

which deletes any entry made into the input field that is not a number.

以上两种工作都有，但我认为有些人更喜欢使用focusout（function（）而不是keyup（function（）;）

Both above work, although i think some people prefer to use focusout(function() rather than keyup(function() ;)

推荐答案

已解决

对于我使用的php部分

For the php part i used

if(!ctype_digit($_POST['value']))

只允许正整数

对于javascript

And for javascript

 $('.inputQuantity').keyup(function(){ 
    this.value = this.value.replace(/[^0-9\.]/g,'');
});

删除输入字段中不是数字的任何条目。

which deletes any entry made into the input field that is not a number.

以上两种工作都有，但我认为有些人更喜欢使用focusout（function（）而不是keyup（function（）;）

Both above work, although i think some people prefer to use focusout(function() rather than keyup(function() ;)

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