Can an Interface class implement a variable in PHP?

Interfaces in PHP cannot contain variables, they can only contain method signatures. If you need to have a variable associated with an interface, you can achieve this by having a class implement the interface and define the variable within that class. 

<?php

interface MyInterface {
    // Method signatures here
}

class MyClass implements MyInterface {
    public $myVariable;

    // Implement interface methods here
}

?>

Keywords

Interface class variable implementation PHP object-oriented programming

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