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run code in 150+ php & hhvm versions
Bugs & Features
<?php trait Counter { public static function inc() { static $c = 0; $c = $c + 1; echo "$c\n"; } } Counter::inc(); class C1 { use Counter; } C1::inc(); C1::inc(); class C2 { use Counter; } C2::inc();
Output for 5.4.0 - 5.6.28, 7.0.0 - 7.1.0
1 2 3 2
Output for hhvm-3.12.0
1 1 2 1
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected T_STRING in /in/Oqrgt on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_STRING in /in/Oqrgt on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Oqrgt on line 4
Process exited with code 255.