'PHP Class Extends a string variable

Is it possible to declare a class and have it extend a variable? 

class Child extends $parentClass {}
phpclass


Solution 1:[1]

Yes, it is with eval. But it is not recommended.

<?php
function dynamic_class_name() {
    if(time() % 60)
        return "Class_A";
    if(time() % 60 == 0)
        return "Class_B";
}
eval(
    "class MyRealClass extends " . dynamic_class_name() . " {" . 
    # some code string here, possibly read from a file
    . "}"
);
?>

Is Eval an evil?! Read this.

Solution 2:[2]

A Class can not extend from a variable , You need to wrap the variable inside a class to extend . Hope this helps

Solution 3:[3]

I know this is an old question, but I hope my answer helps someone. You can use class_alias() to an "intermediate" class:

class_alias($parentClass, 'ParentClassAlias');
class Child extends ParentClassAlias {}

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Community
Solution 2
Solution 3 Stocki

Related Questions