I'm posting this (see below) for two reasons: 1. so that others may benefit, and 2. to invite feedback on my code (PHP is the first language I have learned... and I've only been doing this for a week or so).
Cheers, Rob P.S. Has anyone found a good way to parse variables to validate specific formats? For example: Canadian postal codes (ZIP codes) are like A1A-1A1. Driver's Licences are A123456789. Problem: Unwanted characters are often added by users of web based forms. This causes problems when storing the data, especially given the constraints of a database such as MySQL. Solution: Evaluate each variable, character by character, and (if true) add it to a new variable which may be used. <? include("supercln.inc"); $sHomePhone = supercln("num",$frmHomePhone); $sProvince = supercln("alpha",$frmProvince); ?> <? // This is the supercln.inc file included in the first section of PHP code. function supercln($clntype, $clninput) { $strcount = strlen($clninput); if ($clntype == alpha) { for ($i = 1; $i <= $strcount; $i++) { $strletter = $clninput{$i-1}; if ( preg_match("/[A-z]/",$strletter) == true ) { $strcleaned = $strcleaned.$strletter; } } } elseif ($clntype == num) { for ($i = 1; $i <= $strcount; $i++) { $strletter = $clninput{$i-1}; if ( preg_match("/[0-9]/",$strletter) == true ) { $strcleaned = $strcleaned.$strletter; } } } elseif ($clntype == alphanum) { for ($i = 1; $i <= $strcount; $i++) { $strletter = $clninput{$i-1}; if ( preg_match("/\w/",$strletter) == true ) { $strcleaned = $strcleaned.$strletter; } } } else { $strcleaned = "Error... must be either alpha num or alphanum."; } return $strcleaned; } ?> -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]