3v4l.org

run code in 300+ PHP versions simultaneously
<?php function analyze(string $input): bool { $decoded = base64_decode($input); var_dump(bin2hex($decoded)); return base64_encode($decoded) === $input; } var_dump(analyze('PHP')); var_dump(analyze('PHP=')); var_dump(analyze('PHM='));
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.29, 8.2.0 - 8.2.21, 8.3.0 - 8.3.9
string(4) "3c73" bool(false) string(4) "3c73" bool(false) string(4) "3c73" bool(true)
Output for 5.6.0 - 5.6.40
Parse error: syntax error, unexpected ':', expecting '{' in /in/OM5jE on line 3
Process exited with code 255.
preferences:
195.91 ms | 403 KiB | 295 Q