<?php

declare(strict_types=1);

/*

* This file is part of the DebugBar package.

*

* (c) 2013 Maxime Bouroumeau-Fuseau

*

* For the full copyright and license information, please view the LICENSE

* file that was distributed with this source code.

*/

namespace DebugBar;

/**

* Basic request ID generator

*/

class RequestIdGenerator implements RequestIdGeneratorInterface

{

public function generate(): string

{

// 48-bit millisecond timestamp (lexical sort = time sort)

$t = (int) (microtime(true) * 1000);

$time

= chr(($t >> 40) & 0xFF)

. chr(($t >> 32) & 0xFF)

. chr(($t >> 24) & 0xFF)

. chr(($t >> 16) & 0xFF)

. chr(($t >> 8) & 0xFF)

. chr(($t >> 0) & 0xFF);

$rand = random_bytes(10);

return bin2hex($time . $rand);

}

}