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run code in 150+ php & hhvm versions
Bugs & Features
<?php function test(&$one, &$two) { } $i = 0; test($i++, $i . '1');
Output for 5.3.0 - 5.4.20
Fatal error: Only variables can be passed by reference in /in/Jb6IU on line 9
Process exited with code 255.