3v4l.org

run code in 300+ PHP versions simultaneously
<?php function base64_encode_url($string) { $data = base64_encode($string); return str_replace(['+','/','='], ['-','_',''], $data); } function base64_decode_url($string) { $data = str_replace(['-','_'], ['+','/'], $string); $mod4 = strlen($data) % 4; return base64_decode($data /*. substr('====', $mod4)*/); } for ($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 - 7.3.28, 7.4.0 - 7.4.16, 8.0.0 - 8.0.3
OK
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Call to undefined function random_bytes() in /in/9TR6J on line 15
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[', expecting ')' in /in/9TR6J on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[', expecting ')' in /in/9TR6J on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/9TR6J on line 5
Process exited with code 255.
preferences:
233.38 ms | 401 KiB | 367 Q