How check checkbox is checked or not in php codeigniter?

Question

CodeIgniter Checkbox Helper

Just a tiny helper to help with checkboxes. When you uncheck a checkbox, it's value does not get sent in the form values. Instead of telling CodeIgniter you want to set this value to 0, it says "don't change it." This fixes that, one by one, by setting the value of the associated $_POST array item to zero. You can also pass in an array of checkbox names and it will do each one.

Usage

$this->load->helper('checkbox');

// set post values to zero for unchecked boxes
fix_unchecked(['is_active', 'is_enabled', 'is_verified']);

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	<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

	/**
	* @author Mike Funk
	* @link http://mikefunk.com
	* @email
	* @file checkbox.php
	*/

	/**
	* checkbox value fixer. If a checkbox is not checked, sets it's value
	* to zero.
	* @param mixed $name the checkbox form field name. Can be passed as a
	* string or as an array.
	* @return void
	*/
	function fix_unchecked($name)
	{
	if (!is_array($name)) {$name = array($name);}
	foreach ($name as $item)
	{
	if (!$this->input->post($item)) {$_POST[$item] = 0;}
	}
	}
	/* End of file checkbox.php */
	/* Location: ./application/helpers/checkbox.php */

September 6, 2020 Category : jQuery

Hi Dev,

Here, i will show you how to works jquery check if checkbox is checked or not. you can see how to check checkbox is checked or not in jquery on button click. Here you will learn jquery get checkbox value if checked.

if you have question about how to check checkbox is checked or not in jquery using id then i will give simple example with solution. You just need to some step to done jquery check if checkbox is checked or not.

We will use jquery prop() method to check checkbox is checked or not. So you can see bellow simple full example that will help you to understand example.

Solution:

$('input[type="checkbox"]').click(function(){
    if($(this).prop("checked") == true){
        alert("you checked checkbox.");
    }else if($(this).prop("checked") == false){
        alert("you unchecked checkbox.");
    }
});

Example:

<!DOCTYPE html>
<html>
<head>



 <title>jquery check if checkbox is checked or not - itsolutionstuff.com</title>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
</head>
<body>
<h2>jquery check if checkbox is checked or not - itsolutionstuff.com</h2>
<label>
 <input type="checkbox" name="i_agree"> I agree
</label>
<script>
 $(document).ready(function(){
 $('input[type="checkbox"]').click(function(){
 if($(this).prop("checked") == true){



 alert("you checked checkbox.");
 }else if($(this).prop("checked") == false){
 alert("you unchecked checkbox.");
 }
 });
 });
</script>
</body>
</html>

I hope it can help you...

Hardik Savani

I'm a full-stack developer, entrepreneur and owner of Aatman Infotech. I live in India and I love to write tutorials and tips that can help to other artisan. I am a big fan of PHP, Laravel, Angular, Vue, Node, Javascript, JQuery, Codeigniter and Bootstrap from the early stage. I believe in Hardworking and Consistency.

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