[PHP Code > PHP Checkbox Control]

Checkboxes

Picture of me and my dog

This demo shows the use of the HTML Checkbox Control and how to use a PHP array to gather the user's input after a Submit. This also illustrates how to maintain and show what the user selected -- in other words, make the form sticky.

Apple
Pear
Orange
Mango
Apricot


You may use the following script as you need without any obligation to me whatsoever. However, a Donation via PayPal would be greatly appreciated -- please note, this site does not accept advertising.


Here's the PHP/HTML code for the "Checkbox" Control: 

00 
07  <?php 
08  
09  	error_reporting(E_ALL);	// set error reporting to all					
10  	$self = htmlspecialchars(basename($_SERVER['SCRIPT_NAME']));
11  	
12  	$option = array();
13  	$s = ' CHECKED ';
14      
15  	if(isset($_POST['option']))
16  		{
17  		foreach ($_POST['option'] as $value)
18  			{
19  			$option[] = $value;
20  			}  
21  		}     
22  ?>
23  
24  
24  <!doctype html>
24  <html lang="en-us">
24  
24  <head>
24  	<meta charset="utf-8">
24  	<title>tedd's Examples</title>
24  </head>
24  
24  <body>
25  	
40  	<form action="<?php echo($self); ?>" method="POST" class="examples">
41  	  	<p>
42  		<input type="checkbox" name="option[]" value="Apple" <?php if (in_array('Apple', $option)) echo($s); ?>> Apple<br>
43  		<input type="checkbox" name="option[]" value="Pear" <?php if (in_array('Pear', $option)) echo($s); ?>> Pear<br>
44  		<input type="checkbox" name="option[]" value="Orange" <?php if (in_array('Orange', $option)) echo($s); ?>> Orange<br>
45  		<input type="checkbox" name="option[]" value="Mango" <?php if (in_array('Mango', $option)) echo($s); ?>> Mango<br>
46  		<input type="checkbox" name="option[]" value="Apricot" <?php if (in_array('Apricot', $option)) echo($s); ?>> Apricot<br>    
47  		</p>
48  		<p>
49  		<input type="submit" name="submit" value="Submit">
50  		</p>
51  	</form>
52  
52  </body>
52  </html>
  Show the above CODE for Copy/Paste below.

The following code will work "as-is" without any additional coding. However, remember to use a .php' suffix. 



<?php 

	error_reporting(E_ALL);	// set error reporting to all					
	$self = htmlspecialchars(basename($_SERVER['SCRIPT_NAME']));
	
	$option = array();
	$s = ' CHECKED ';
    
	if(isset($_POST['option']))
		{
		foreach ($_POST['option'] as $value)
			{
			$option[] = $value;
			}  
		}     
?>


<!doctype html>
<html lang="en-us">

<head>
	<meta charset="utf-8">
	<title>tedd's Examples</title>
</head>

<body>
	
	<form action="<?php echo($self); ?>" method="POST" class="examples">
	  	<p>
		<input type="checkbox" name="option[]" value="Apple" <?php if (in_array('Apple', $option)) echo($s); ?>> Apple<br>
		<input type="checkbox" name="option[]" value="Pear" <?php if (in_array('Pear', $option)) echo($s); ?>> Pear<br>
		<input type="checkbox" name="option[]" value="Orange" <?php if (in_array('Orange', $option)) echo($s); ?>> Orange<br>
		<input type="checkbox" name="option[]" value="Mango" <?php if (in_array('Mango', $option)) echo($s); ?>> Mango<br>
		<input type="checkbox" name="option[]" value="Apricot" <?php if (in_array('Apricot', $option)) echo($s); ?>> Apricot<br>    
		</p>
		<p>
		<input type="submit" name="submit" value="Submit">
		</p>
	</form>

</body>
</html>