PHP function missing argument error
Missing argument 3 ($type) for validate()
Always list optional arguments as the last arguments. Since PHP doesn't have named parameters nor "overloading ala Java", that's the only way:
function validate($data, $type, $data2 = 0) {
}
You should at least set the $type in this line:
function validate($data, $data2 = 0, $type)
at NULL
or ''
as you can see here:
function validate($data, $data2 = 0, $type = null)
PHP let you to set a value for the parameters, but you can't define a parameter WITHOUT a preset value AFTER parameter(s) which HAVE a preset value. So if you need to always specify the third param, you have to switch the second and the third like this:
function validate($data, $type, $data2 = 0)