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<?php function array_hiss() { return array("hiss"); } function mutabledefault($arg=array("hiss")) { var_dump($arg); } mutabledefault(); mutabledefault();
Output for 4.3.0 - 7.2.0
array(1) { [0]=> string(4) "hiss" } array(1) { [0]=> string(4) "hiss" }