Can We Restrict PHP Variables to accept only certain type of values

Question

i am wondering is it possible to restrict php variable to accept only certain type of variable it is defined to accept.

e-g if we see in C#

public in         


        

Answer 1

You have to made it by your own hands, example :

function setInt(&$var, $value) {
    if(!is_integer($value) {
        throw new Exception("Integer wanted " . gettype($value) . " received");
    }
    $var = $value;
}