Required fields radiobuttons and validation

Hi Hans,

I’ve implemented this telephone validation code today and it’s working great for me.

/*
Validate Telephone and FAX Numbers in Contact Form 7 This is for 11 digit numbers
*/

function is_number( $result, $tag ) {
$type = $tag[‘type’];
$name = $tag[‘name’];

if ($name == ‘phone’ || $name == ‘fax’) { // Validation applies to these textfield names. Add more with || inbetween
$stripped = preg_replace( ‘/\D/’, ”, $_POST[$name] );
$_POST[$name] = $stripped;
if( strlen( $_POST[$name] ) != 11 ) { // Number string must equal this
$result[‘valid’] = false;
$result[‘reason’][$name] = $_POST[$name] = ‘Please enter an 11 digit phone number.’;
}
}
return $result;
}

add_filter( ‘wpcf7_validate_text’, ‘is_number’, 11, 2 );
add_filter( ‘wpcf7_validate_text*’, ‘is_number’, 11, 2 );

Add it at the end of your themes/functions.php but before the ‘?>’