$value ) { $_SESSION[$module][$key] = $value; } // idea from http://stackoverflow.com/a/10469574/289404 if ( $csrf !== $_SESSION[$module]['csrf'] ) { echo '

Bad request token. Please try again.

'; return false; } // Check required $required = array( 'firstname' => 'First name', 'surname' => 'Last name', 'zip' => 'ZIP', 'email' => 'E-mail', 'password' => 'Password', 'password2' => 'Confirm password', 'agree' => 'Agreement', ); foreach ( $required as $key => $value ) { if ( empty(${$key}) ) { echo '

Please enter: '.$value.'.

'; return false; } } if ($password != $password2) { echo '

Passwords missmatch.

'; return false; }