[RESOLVED] PHP Validation

[transfield]

Hello,
I want to validate 4 text boxes(in a html form) to prevent users from keying in certain words. I'm using the code below to validate 1 text box & the code works fine. How do I use the same code to validate all 4 text boxes instead of re-writing the code 4 times?

My code:-

if (in_array(strtoupper($_POST['Text_Box_1']), array('03-', '04-', '05-', '06-', '07-', '08-', '09-', '012', '013', '016', '017', '019', 'E10', 'E20', 'E30', 'RM1', 'RM2', 'RM3', 'RM4', 'RM5', 'RM6', 'RM7', 'RM8', 'RM9', '012-', '013-', '016-', '017-', '019-'))) die('This keyword is disallowed. Please click the BACK button of your browser & change your search criteria to something else. Thanks :-)');

The names of my text boxes are:-
Text_Box_1
Text_Box_2
Text_Box_3
Text_Box_4

Thanks a lot for your assistance.

[Rodney_H_]

Well, I am sure someone will think of something better, as I am not 100% sure of what you are trying to do.

Nevertheless, you might at least try this:

<?php
// items that are not allowed:
$disallowed = array('03-','04-','05-','06-','07-','08-','09-','012','013','016','017','019','E10','E20','E30','RM1','RM2','RM3','RM4','RM5','RM6','RM7','RM8','RM9','012-','013-','016-','017-','019-');

// posted values to check
$posted_values = array(1=>'Text_Box_1','Text_Box_2','Text_Box_3','Text_Box_4');

foreach($posted_values as $key=>$value)
{
	if(!isset($_POST[$value]) || trim($_POST[$value]) == '')
	{
		die('Text box #'.$key.' must not be empty');
	}
	else
	{
		if(in_array($value, $disallowed))
		{
			die('This keyword is disallowed....');
		}
	}
}

// no errors yet, keep processing...

?>

[transfield]

Thank you very much, Rodney. I appreciate your help. Have a good day :-)