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<?php declare(strict_types=1); function foo(int $x, int $y = 2, ?int &$z = null) { var_dump(func_num_args()); $z = $x ** 2; return $x * $y; } var_dump([foo(5, z: $a), $a]); var_dump([foo(3, -1)]);
Output for git.master_jit, git.master
int(3) array(2) { [0]=> int(10) [1]=> int(25) } int(2) array(1) { [0]=> int(-3) }

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