Online PHP editor | rfc for sk5l3

@ 2015-01-07T20:41:50Z

<?php


//Hi, this is actually possible already in PHP already, and doesn't need any extra functionality.

// You can specify a function to be called to combine multiple arguments into a single
// value inside case statements like this:


function f($value, $access = null) {
    $knownAccessTypes = [
        'read-only',
        'read-write'
    ];
    
    if (in_array($access, $knownAccessTypes)) {
        return $value.$access;
    }

    return $value;
}

function multiSwitchFunction($value, $access = null) {

    switch (f($value, $access)) {
        case f('a', 'read-only'):       return 'a r';
        case f('a', 'read-write'):      return 'a w';
        case f('a'):                    return 'a default';

        case f('b', 'read-only'):       return 'b r';
        case f('b', 'read-write'):      return 'b w ';

        case f('c', 'read-only'):       return 'c r';
        case f('c', 'read-write'):      return 'c w';

        case f('d', 'read-only'):       return 'd r';
        case f('d', 'read-write'):      return 'd w' ;

        default:                        return "unknown";
    }
}

var_dump(multiSwitchFunction('a', 'read-write'));
var_dump(multiSwitchFunction('a', 'foobar'));
var_dump(multiSwitchFunction('d', 'read-write'));
var_dump(multiSwitchFunction('d', 'foobar'));

Output for git.master, git.master_jit, rfc.property-hooks: string(3) "a w" string(9) "a default" string(3) "d w" string(7) "unknown"

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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