3v4l.org

run code in 300+ PHP versions simultaneously
<?php const A = [1, 2, 3]; var_dump(sort(A));
Output for 8.3.0 - 8.3.6
Fatal error: Uncaught Error: sort(): Argument #1 ($array) could not be passed by reference in /in/GP0Si:4 Stack trace: #0 {main} thrown in /in/GP0Si on line 4
Process exited with code 255.
Output for 8.1.23 - 8.1.28, 8.2.10 - 8.2.18
Fatal error: Uncaught Error: sort(): Argument #1 ($array) cannot be passed by reference in /in/GP0Si:4 Stack trace: #0 {main} thrown in /in/GP0Si on line 4
Process exited with code 255.
Output for 5.4.0 - 5.4.34
Fatal error: Arrays are not allowed as constants in /in/GP0Si on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/GP0Si on line 3
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
Parse error: syntax error, unexpected T_CONST in /in/GP0Si on line 3
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 T_CONST in /in/GP0Si on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/GP0Si on line 3
Process exited with code 255.

preferences:
112.95 ms | 401 KiB | 144 Q