35 lines
801 B
PHP
Executable File
35 lines
801 B
PHP
Executable File
<?php
|
|
|
|
namespace FedaPay\Util;
|
|
|
|
/**
|
|
* A basic random generator. This is in a separate class so we the generator
|
|
* can be injected as a dependency and replaced with a mock in tests.
|
|
*/
|
|
class RandomGenerator
|
|
{
|
|
/**
|
|
* Returns a random value between 0 and $max.
|
|
*
|
|
* @param float $max (optional)
|
|
* @return float
|
|
*/
|
|
public function randFloat($max = 1.0)
|
|
{
|
|
return mt_rand() / mt_getrandmax() * $max;
|
|
}
|
|
|
|
/**
|
|
* Returns a v4 UUID.
|
|
*
|
|
* @return string
|
|
*/
|
|
public function uuid()
|
|
{
|
|
$arr = array_values(unpack('N1a/n4b/N1c', openssl_random_pseudo_bytes(16)));
|
|
$arr[2] = ($arr[2] & 0x0fff) | 0x4000;
|
|
$arr[3] = ($arr[3] & 0x3fff) | 0x8000;
|
|
return vsprintf('%08x-%04x-%04x-%04x-%04x%08x', $arr);
|
|
}
|
|
}
|