3v4l.org

run code in 200+ PHP versions simultaneously
<?php define('FOO', bin2hex(random_bytes(32))); class Bar { const BAZ = FOO; } class Qux extends Bar { const BAZ = 'lol'; } var_dump(Qux::BAZ);
based on KJkmQ
Output for 7.0.0 - 7.4.2
string(3) "lol"
Output for 5.0.0 - 5.6.40
Fatal error: Call to undefined function random_bytes() in /in/Ok7GI on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CONST, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/Ok7GI on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_CONST, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/Ok7GI on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/Ok7GI on line 6
Process exited with code 255.