[PHP] Convert a string into an array of characters
Published on 2019-12-05 • Modified on 2019-12-05
The str_split function is not well known. It converts a string into an array of characters (with the default second parameter). It is useful sometimes to avoid declaring an array manually like here with the str_replace function.
<?php
declare(strict_types=1);
namespace App\Controller\Snippet;
/**
* I am using a PHP trait to isolate each snippet in a file.
* This code should be called from a Symfony controller extending AbstractController (as of Symfony 4.2)
* or Symfony\Bundle\FrameworkBundle\Controller\Controller (Symfony <= 4.1).
* Services are injected in the main controller constructor.
*/
trait Snippet62Trait
{
public function snippet62(): void
{
$tokenSize = 32;
$random = random_bytes($tokenSize);
$base = base64_encode($random);
$clean = str_replace(str_split('+/-_'), '', $base);
$cut = substr($clean, 0, $tokenSize);
echo 'Token: '.$cut.PHP_EOL;
echo 'Token length: '.\strlen($cut); // That's it! 😁
}
}Run this snippet More on Stackoverflow Read the doc Run on 3v4l.org Random snippet
