3v4l.org

run code in 300+ PHP versions simultaneously
<?php function sample( &$array ) { $array['test'] = 'test1'; } function sample1( array $fruit ) { var_dump( $fruit ); } sample1( sample( array( 'test2' => 'test3' ) ) );
Output for 8.3.0 - 8.3.6
Fatal error: Uncaught Error: sample(): Argument #1 ($array) could not be passed by reference in /in/AOaPB:13 Stack trace: #0 {main} thrown in /in/AOaPB on line 13
Process exited with code 255.
Output for 8.1.23 - 8.1.28, 8.2.10 - 8.2.18
Fatal error: Uncaught Error: sample(): Argument #1 ($array) cannot be passed by reference in /in/AOaPB:13 Stack trace: #0 {main} thrown in /in/AOaPB on line 13
Process exited with code 255.
Output for 5.3.0 - 5.3.27, 5.4.0 - 5.4.22, 5.5.0 - 5.5.6
Fatal error: Only variables can be passed by reference in /in/AOaPB on line 13
Process exited with code 255.
preferences:
95.28 ms | 402 KiB | 85 Q