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<?php function foo($p) { var_dump(func_get_args()); } foo('p1'); foo('p1', 'p2');
Output for 4.3.0 - 7.2.0
array(1) { [0]=> string(2) "p1" } array(2) { [0]=> string(2) "p1" [1]=> string(2) "p2" }