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<?php function foo($b, $a) { return $b . $a; } var_dump(call_user_func_array('foo', ['a' => 'first', 'b' => 'second'])); var_dump(call_user_func_array('foo', ['first', 'second']));
Output for git.master, git.master_jit, rfc.property-hooks
string(11) "secondfirst" string(11) "firstsecond"

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