3v4l.org

run code in 300+ PHP versions simultaneously

@ 2020-03-26T12:27:17Z

<?php

$stack = function ($request) { //middleware1
    $request++;
    
    $response = (function ($request) {//middleware2
        $request++;
        
        $response = (function ($request) {//middleware3
            $request++;
            
            $response = (function ($request) {//middleware4
                $request++;
                
                $response = (function ($request) {//middleware5
                    return $request;          
                })($request);
                
                $response--;
                return $response; 
            })($request);
            
            $response--;
            return $response;
        })($request);
        
        $response--;
        return $response;
    })($request);
    
    $response--;
    return $response;
};

echo $stack(120), "\n";
echo $stack(55), "\n";

Output for git.master, git.master_jit, rfc.property-hooks: 120 55

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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

preferences:dark modelive previewkey bindings

122.68 ms | 405 KiB | 5 Q