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<?php $x = 10; function outer($x) { function inner($y) { global $x; // uses the actually global $x from line 2, not the param from line 3 return $x + $y; } return inner(5); } echo outer(5); // expected: 10, actual: 15 /* $z = 10; function outer2($z) { function inner($w) use ($z) { // syntax error, function (...) use (...) form is reserved for closures return $z + $w; } return inner(5); } echo outer2(5); // expected: 10, actual: syntax error */
Output for git.master, git.master_jit, rfc.property-hooks
15

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