3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump( arsort( array( 'c' => 100, 'a' => 300, 'b' => 50, 'd' => 250) ) );
Output for 8.3.0 - 8.3.6
Fatal error: Uncaught Error: arsort(): Argument #1 ($array) could not be passed by reference in /in/g34PU:3 Stack trace: #0 {main} thrown in /in/g34PU on line 3
Process exited with code 255.
Output for 8.1.23 - 8.1.28, 8.2.10 - 8.2.18
Fatal error: Uncaught Error: arsort(): Argument #1 ($array) cannot be passed by reference in /in/g34PU:3 Stack trace: #0 {main} thrown in /in/g34PU on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.21, 5.4.0 - 5.4.11
Fatal error: Only variables can be passed by reference in /in/g34PU on line 3
Process exited with code 255.

preferences:
78.56 ms | 402 KiB | 61 Q