3v4l.org

run code in 300+ PHP versions simultaneously
<?php function base64_encode_url($string) { return str_replace(['+','/','='], ['-','_',''], base64_encode($string)); } function base64_decode_url($string) { return base64_decode(str_replace(['-','_'], ['+','/'], $string)); } for ($i=0; $i<20000; $i++) { $data = random_bytes(rand(12,20)); if (base64_decode_url(base64_encode($data)) !== $data) { echo "FAIL"; } } echo "OK";
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
OK
Output for 5.6.0 - 5.6.40
Fatal error: Call to undefined function random_bytes() in /in/aEs4o on line 12
Process exited with code 255.
preferences:
203.39 ms | 401 KiB | 296 Q