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<?php preg_match("/(\w+)?/", "",'assdfasdf'); print_r($matches); echo "\n"; preg_match("/(\w*)/", "",$matches); print_r($matches);
Output for 8.3.0 - 8.3.4
Fatal error: Uncaught Error: preg_match(): Argument #3 ($matches) could not be passed by reference in /in/eu9SX:2 Stack trace: #0 {main} thrown in /in/eu9SX on line 2
Process exited with code 255.
Output for 8.1.23 - 8.1.27, 8.2.10 - 8.2.17
Fatal error: Uncaught Error: preg_match(): Argument #3 ($matches) cannot be passed by reference in /in/eu9SX:2 Stack trace: #0 {main} thrown in /in/eu9SX on line 2
Process exited with code 255.
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.24
Fatal error: Only variables can be passed by reference in /in/eu9SX on line 2
Process exited with code 255.

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