Online PHP editor | rfc for mLGPa

@ 2025-07-01T12:10:25Z

<?php
$x = 4;
if($x == 1){
    class X{}
    session_start();
    $_SESSION["x"] = new X();
    $_SESSION["y"] = "5";
    echo session_encode();
    // x|O:1:"X":0:{}y|s:1:"5";
} elseif($x == 2){
    session_start();
    session_decode('x|O:1:"X":0:{}y|s:1:"5";');
    $_SESSION["y"] = 6;
    echo session_encode();
    die();
    print_r($_SESSION);
    /*
    Array
    (
        [x] => __PHP_Incomplete_Class Object
            (
                [__PHP_Incomplete_Class_Name] => X
            )

        [y] => 5
    )
    */
} elseif($x == 3){
    enum Y{
        case Y;
    }
    session_start();
    $_SESSION["x"] = Y::Y;
    $_SESSION["y"] = "5";
    echo session_encode();
    // x|E:3:"Y:Y";y|s:1:"5";
} elseif($x == 4){
    session_start();
    session_decode('x|E:3:"Y:Y";y|s:1:"5";');
    print_r($_SESSION);
    /*
    Warning: session_decode(): Class 'Y' not found in /in/1IEIF on line 36

    Warning: session_decode(): Failed to decode session object. Session has been destroyed in /in/1IEIF on line 36
    Array
    (
    )
    */
}

Output for git.master_jit, git.master: Warning: session_decode(): Class 'Y' not found in /in/mLGPa on line 39 Warning: session_decode(): Failed to decode session object. Session has been destroyed in /in/mLGPa on line 39 Array ( )

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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