I receive the following error : " Can't use method return value in write context "-CodePudding

<?php
   
include("Emp.php");

$Email = $_GET["id"];

User::FileLoader();

$content = "";
foreach (User::$userlist as $user) {
    if ($user->get_Email() == $Email) {
        if ($user->get_State() == 1) {
            $user->set_State() = 0;       
        }
        else if ($user->get_State() == 0) {
            $user->set_State() = 1;
        }
    }
}
header("location:liste.php");

CodePudding user response：

The error message may be a little obtuse, but it's not that hard to understand. The return value of a function call is just that -- a value. Unlike a variable, it is not backed by persistent storage, so you cannot write to it by, for example, using it as the left-hand operand of an assignment.

Thus, both this ...

            $user->set_State() = 0;

... and this ...

            $user->set_State() = 1;

... are wrong.

You have not presented your User class to inform an answer, but surely the set_State() method expects you to specify the new state via an argument. For example,

            $user->set_State(0);