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<?php function foo_bat(&$var){ echo $var++; } var_dump(foo_bat(5)); ?>
Output for 5.3.0 - 5.3.22, 5.3.24 - 5.4.12, 5.4.14
Fatal error: Only variables can be passed by reference in oGjbb on line 5
Process exited with code 255.
Output for 5.3.23, 5.4.13
Fatal error: Only variables can be passed by reference in /in/84CuD on line 5
Process exited with code 255.