如何在数字输入栏中停止接受字母e。 [英] How to stop the letter e being accepted in number input field.

问题描述

我有许多纯粹整数的输入，即0到54.

因此我的输入代码是

I have a number of inputs which are purely integers namely 0 to 54.
My code for input is thus

<td> <input id="P1HC" name="P1HC" type="number" min="0" max="54" size= "1"  pattern="^[1-9]$"  value="<?php echo $_SESSION["HC1"]; ?>"> </td>

但是，我仍然可以在输入中键入e。除了0到9或e之外，它不会接受任何其他字母或字符。

另外我可以输入大于54的数字为什么？



任何想法？

计划在PHP服务器端进行验证，但想先在用户端进行检查。



什么我试过了：



还尝试添加

However, I can still type 'e' into the input. It will not accept any other letter or characters other than 0 to 9 or e.
Also I can type in numbers greater than 54 why?

Any ideas?
Plan to validate in PHP server side but wanted to check at the user side first.

What I have tried:

Also tried adding

onchange = "check(this)"

，javascript为

with javascript of

function check(that) {
        var StringInput = that.value;
    if (!/^[1-9]*$/g.test(StringInput)) {
        alert("You have entered invalid characters");
        that.value = "";
        that.focus();
        return false;
    }
    }

仍然无效。

Still did not work.

推荐答案

value = <？php echo

" value="<?php echo

_SESSION [HC1]; ？>>< / td>

_SESSION["HC1"]; ?>"> </td>

但是，我仍然可以在输入中键入e。它不会接受0到9或e以外的任何其他字母或字符。

另外我可以输入大于54的数字为什么？



任何想法？

计划在PHP服务器端进行验证，但想先在用户端进行检查。



我尝试了什么：



还尝试添加

However, I can still type 'e' into the input. It will not accept any other letter or characters other than 0 to 9 or e.
Also I can type in numbers greater than 54 why?

Any ideas?
Plan to validate in PHP server side but wanted to check at the user side first.

What I have tried:

Also tried adding

onchange = "check(this)"

，javascript为

with javascript of

function check(that) {
        var StringInput = that.value;
    if (!/^[1-9]*

/g.test(StringInput））{
alert（您输入了无效字符）;
that.value =;
that.focus（）;
返回false;
}
}

/g.test(StringInput)) { alert("You have entered invalid characters"); that.value = ""; that.focus(); return false; } }

仍然无效。

Still did not work.

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