Form Validation

Anon

Does any one have a good php form validation script? I have a long form that I would like to validate the fields before it goes to the database, however I would like to use php to validate the <input> fields to check for data and format.

I do not want to use client side for this (javascript). If anyone has a good Idea what I could do i would appreciate it

Thanks

eduard

Maybe a good editor. Form validators are quite simple to make, but since you can give an input field every name you want, all validators will be diffrent. When someone gives you an axample, changing it will take as much time as creating a new one.

hint:
if (empty($fieldname1)){ $errMessage .= "<li>Field 1 isn't filled"; }

$dateParts = explode ("-", $date1);
if (!checkdate($dateParts[1], $dateParts[0], $dateParts[2])){ $errMessage .= "<li>The date doesn't exist"; }
(Last (the date check) depends on the format you want the date in... in this case dd-mm-yyyy is the wanted format....)

Anon

Here's one I did for validating phone numbers.

/* ---------------------------------------------------------

DATE: 5-2001

PURPOSE: Check the given "stripped" phone number for validity.

PARAMETERS: the phone number

RETURNS: If Ok, return -1. Otherwise, return the phone number length.

Last modified: 7-21-01

Notes:

--------------------------------------------------------- */

function CheckPhoneNumLen($phone_num)
{
$len = strlen($phone_num);

if ($len != 10)	  // e.g. "2027773238"
	{
	return $len;
	}
else
	{
	return -1;    // true
	}

}

So what's a "stripped" phone number? One with only numerics, e.g., no dashes or parens.

/* ---------------------------------------------------------

Remove any non-numbers from given phone num

------------------------------------------------------- */

function StripPhoneNum($phone_num)
{

$len = strlen($phone_num);

for ($i = 0; $i < $len; $i++)
	{
	$a =  $phone_num[$i];

	if ( ($a < "0") || ($a > "9") )
		{
		$striped_phone_num .= "";
		}
	else
		$striped_phone_num .= $phone_num[$i];

	}

return $striped_phone_num;

}

I think you get the idea.

Hope that helps.