GF validation code

//validation for name field in GF to prevent nonsense spam names. Rejects any string with 4 consecutive consonants.
add_filter( 'gform_field_validation', 'validate_name', 10, 4 );
function validate_name( $result, $value, $form, $field ) {
		if ( 'name' === $field->type && $field->isRequired ) {

	GFCommon::log_debug( __METHOD__ . '(): Name values => ' . print_r( $value, true ) );

		$pattern = "/(?=[a-z]{4})[^aeiou]{4}/";

		if ( !preg_match( $pattern, $value ) ) {
				$result['is_valid'] = false;
 				$result['message']  = 'Please enter a valid name';
		} else {
				$result['is_valid'] = true;
				$result['message']  = 'You may pass';
		}
		GFCommon::log_debug( __METHOD__ . '(): Result => ' . print_r( $result, true ) );

		return $result;
}}