Laravel 4, how to test if a Checkbox is checked?

Question

I am trying to see if a checkbox is checked or not in my controller. I've read that this is the code to do it

if (Input::get('attending_lan', true))

But that returns true even if the checkbox is unchecked.

`Input::get('attending_lan', false)` would work, or `Input::get('attending_lan', '0')` — Mei Gwilym, Jul 10 '14 at 11:46

score 27 · Answer 1 · edited May 23 '17 at 12:34

27

Use Input::has('attending_lan')

Generally speaking, if the checkbox is checked, the request variable will exist. If that is not the case you have a problem somewhere else in the code.

Also relavant: Does <input type="checkbox" /> only post data if it's checked?

edited May 23 '17 at 12:34

Community

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answered Nov 23 '13 at 22:50

cen

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This is the best approach – Carlos Goce Aug 27 '14 at 15:07
This fixed my problem with Laravel `remember_me` on login. – Silver Paladin Oct 22 '14 at 15:02
Perfect solution – garrettendi May 16 '17 at 13:00

score 15 · Accepted Answer · answered Nov 23 '13 at 22:49

15

Assuming you have this form code in your view:

// view.blade.php
{{ Form::open() }}
    {{ Form::checkbox('attending_lan', 'yes') }}
    {{ Form::submit('Send') }}
{{ Form::close() }}

You can get the value of the checkbox like this:

if (Input::get('attending_lan') === 'yes') {
    // checked
} else {
    // unchecked
}

The key here is that you have to set a value when creating the checkbox in your view (in the example, value would be yes), and then check for that value in your controller.

answered Nov 23 '13 at 22:49

Manuel Pedrera

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It should also be noted that if attending_lan is unchecked, you will not get an error. This differs from standard PHP where if you query an unchecked attending_lan you get variable not found. – Relaxing In Cyprus Feb 03 '14 at 19:57

score -1 · Answer 3 · answered Nov 09 '14 at 15:37

if(filter_var(Input::get('attending_lan'), FILTER_VALIDATE_BOOLEAN)){

The FILTER_VALIDATE_BOOLEAN filter validates value as a boolean option.

Possible return values:

Returns TRUE for "1", "true", "on" and "yes", and uppercase versions.
Returns FALSE for "0", "false", "off" and "no", and uppercase versions.
Returns NULL otherwise.

source: http://www.w3schools.com/php/filter_validate_boolean.asp

score -2 · Answer 4 · answered Jun 19 '14 at 00:42

An alternative is to check the array key to see if it exists, given that when not checked an Input::get('key') might give you problems given its an undefined index in the Input array.

$input = Input::all();
if(array_key_exists($input('key',$input)){
// Checked
}else{
// Not Checked
}

Or .. something like that. I'm a bit sloppy but I hope it can help someone.

Laravel 4, how to test if a Checkbox is checked?

4 Answers4