Re: Re: Recursion to sanitize user input

Hi M I don't understand. I don't think I'm storing it anywhere. I have it looping through all the POST variables. If it's not an array then the sanitize function returns a sanitized value. If it's an array then the sanitize function calls itself again and again until it finds a single variable and returns it as a sanitized value. ----- Original Message ----- From: "M. Sokolewicz" <tularis@php.net> To: <php-general@lists.php.net> Sent: Friday, October 08, 2004 6:19 PM Subject: [PHP] Re: Recursion to sanitize user input > Very simple :) > when recursion happens, you return the sanitized value, but never store > it ;) > > zooming@gamebox.net wrote: > > > I'm trying to sanitize my user input. My sanitize function does not work if > > I send a variable that's an array. I'm using recursion to go through the > > array. The example below shows that $_POST['city'] works but $_POST['user'] > > doesn't work. The array comes back blank. > > > > Anyone see what's wrong with my code? > > > > OUTPUT: > > > > Array > > ( > > [city] => New York > > [user] => > > ) > > > > CODE: > > > > <?php > > > > function sanitize($userInput = '') > > { > > if ( is_array($userInput) ) > > { > > foreach ( $userInput as $key => $value ) > > { > > sanitize( $value ); > > } > > } > > else > > { > > if ( get_magic_quotes_gpc() ) > > { > > return trim( $userInput ); > > } > > else > > { > > return trim( addslashes($userInput) ); > > } > > } > > } > > > > $_POST['city'] = 'New York'; > > $_POST['user']['firstName'] = 'Bob'; > > $_POST['user']['lastName'] = 'Smith'; > > $_POST['user']['country'] = 'USA'; > > > > foreach ( $_POST as $key => $value ) > > { > > $_POST[$key] = sanitize( $value ); > > } > > > > echo '<pre>'; > > echo print_r($_POST); > > echo '</pre>'; > > > > ?> > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php >