On 5/6/09 4:02 PM, "Al" <news@xxxxxxxxxxxxx> wrote:
> Here's the way I handle validating user form inputs. Each function validates
> several things and throws an error with the message stating what's wrong.
>
> try
> {
> checkEmailAddr($userSubmitedDataArray[EMAIL_ADDR_FIELD]);
> checkPhoneDigits($userSubmitedDataArray[PHONE_NUM_FIELD],
> 'phone');
> checkNotes($userSubmitedDataArray, $sizesArray);
> if(!empty($userSubmitedDataArray[CELLPHONE_NUM_FIELD]))
> {
> checkPhoneDigits($userSubmitedDataArray[CELLPHONE_NUM_FIELD],
> 'cell');
> checkCellCarrier($userSubmitedDataArray['carrier']);
> }
> }
>
> catch (Exception $e)
> {
> $userErrorMsg = $e->getMessage(); //Message text in check
> function
> }
>
> A typical function looks like this:
>
> function checkEmailAddr($emailAddr)
> {
> if(empty($emailAddr))
> {
> throw new Exception("No email address provided");
> }
>
> if(!preg_match("%\w+@%", $emailAddr))
> {
> throw new Exception("Email address missing mailbox name.");
> }
>
> if(!filter_var($emailAddr, FILTER_VALIDATE_EMAIL))
> {
> throw new Exception("Email address error. Syntax is wrong. ");
> }
> $domain = substr(strchr($emailAddr, '@'), 1);
> if(!checkdnsrr($domain))
> {
> throw new Exception("Email address warning. Specified domain
> \"$domain\" appears to be invalid. Check carefully.");
> }
> return true;
> }
thanks for the example, Al. the combination of checker functions and
exceptions (as far as i understand them, the exceptions chapter of the php
manual is a little terse) so you can throw from inside the checker seems
convenient.
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
