3v4l.org

run code in 300+ PHP versions simultaneously

@ 2014-05-20T00:26:09Z

<?php

class TokenGenerator
{
    const ALPHABET = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';

    public function generateToken($length = 16)
    {
        $alphabetSize = strlen(self::ALPHABET);
        $token = '';

        while (strlen($token) < $length) {
            $randomBytes = hash_hmac('sha256', openssl_random_pseudo_bytes(20), mcrypt_create_iv(20, MCRYPT_DEV_URANDOM));
            $offset = abs(hexdec(bin2hex(substr($randomBytes, 0, 4)))) % $alphabetSize;
            $token .= substr(self::ALPHABET, $offset, 1);
        }

        return $token;
    }
}

$gen = new TokenGenerator();

var_dump($gen->generateToken(10));
var_dump($gen->generateToken(10));
var_dump($gen->generateToken(10));
var_dump($gen->generateToken(20));
var_dump($gen->generateToken(20));
var_dump($gen->generateToken(20));

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Uncaught Error: Call to undefined function openssl_random_pseudo_bytes() in /in/Tmbup:13 Stack trace: #0 /in/Tmbup(24): TokenGenerator->generateToken(10) #1 {main} thrown in /in/Tmbup on line 13
Process exited with code 255.

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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

53.15 ms | 401 KiB | 8 Q