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run code in 150+ php & hhvm versions
Bugs & Features
<?php function f($a, &$b, &$c) { var_dump($a); $b++; $c--; } $ref_a = 10; $ref_b = 10; $arr = array('a', &$ref_a, &$ref_b); call_user_func_array('f', $arr); var_dump($arr);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
string(1) "a" array(3) { [0]=> string(1) "a" [1]=> &int(11) [2]=> &int(9) }