check box with value in php

1<form method="post" action="">
2    <span>Select languages</span><br/>
3    <input type="checkbox" name='lang[]' value="PHP"> PHP <br/>
4    <input type="checkbox" name='lang[]' value="JavaScript"> JavaScript <br/>
5    <input type="checkbox" name='lang[]' value="jQuery"> jQuery <br/>
6    <input type="checkbox" name='lang[]' value="Angular JS"> Angular JS <br/>
7
8    <input type="submit" value="Submit" name="submit">
9</form>
10
11<?php
12if(isset($_POST['submit'])){
13
14    if(!empty($_POST['lang'])) {
15
16        foreach($_POST['lang'] as $value){
17            echo "value : ".$value.'<br/>';
18        }
19
20    }
21
22}
23?>

1<span>Select languages</span><br/>
2<input type="checkbox" name='lang[]' value="PHP"> PHP <br/>
3<input type="checkbox" name='lang[]' value="JavaScript"> JavaScript <br/>
4<input type="checkbox" name='lang[]' value="jQuery"> jQuery <br/>
5<input type="checkbox" name='lang[]' value="Angular JS"> Angular JS <br/>