laravel 如何限制输入仅作为laravel中的数字？
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How to restrict input only as numbers in laravel?
提问by Sajin Shereef
I want to input only numbers while entering and restrict characters.
我想在输入和限制字符时只输入数字。
{!! Form::input('text','advertisement_height',null,['class'=>'form-control']) !!}
回答by mbklnd
You could change the input type to a number field.
您可以将输入类型更改为数字字段。
<input type="number" />
回答by Tutelage Systems
The Laravel validation class comes with a bunch of different number validators: https://laravel.com/docs/5.2/validation#available-validation-rules
Laravel 验证类带有一堆不同的数字验证器：https://laravel.com/docs/5.2/validation#available-validation-rules
You can see there is integerand numeric. If you have the request in your control you could just write the rules for it.
你可以看到有integer和numeric。如果您可以控制请求，则可以为其编写规则。
// on your controller
public function store(Request $request)
{
$rules = ['advertisement_height' => 'required|numeric'];
$this->validate($request, $rules);
}
or you can create a validation object and run the validation on your input, however you get it.
或者您可以创建一个验证对象并在您的输入上运行验证，但是您会得到它。
回答by Popeye
{{Form::number('name','default_text',array('class' => 'form-control', 'required'))}}
{{Form::number('name','default_text',array('class' => 'form-control', 'required'))}}
use 'number' instead of 'text' and 'required' attribute for mandatory field.
对必填字段使用“数字”而不是“文本”和“必填”属性。
回答by yogesh chatrola
Try it here!
在这里试试吧！
<input id="txtnum" onkeypress="return isNumber(event)" type="text" name="txtnum">
Note that digits are allowed and alphabetic characters are not allowed. Observe, too, that arrow keys and backspace are allowed so that you can still edit what you type.
请注意，允许使用数字，不允许使用字母字符。还要注意，允许使用箭头键和退格键，以便您仍然可以编辑您键入的内容。
function isNumber(evt)
{
var charCode = (evt.which) ? evt.which : event.keyCode
if (charCode > 31 && (charCode < 48 || charCode > 57))
return false;
return true;
}
Possible Answer: Allow only numbers to be typed in a textbox
可能的答案：只允许在文本框中键入数字
Fiddle: http://jsfiddle.net/Lm2hS/
回答by MasterSith
Instead of "text" say "number":
而不是“文本”说“数字”：
Form::input('number'....
I think Form::number()...doesn't exist any more
我认为Form::number()...不存在了
