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run code in 150+ php & hhvm versions
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<?php function f2($_, $_){$_=FALSE; var_export(func_get_args());} f2(2,3);
Output for hhvm-3.10.0 - 3.12.0
array ( 0 => 2, 1 => false, )
Output for 4.3.0 - 5.6.28
array ( 0 => 2, 1 => 3, )