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<?php $x = 1; $a = 2; function foo(&$x) { return function () use (&$x) { return $x; }; } $y = foo($a); $z = foo($x); var_dump($y(), $z()); $x = 2; var_dump($y(), $z());
Output for git.master, git.master_jit, rfc.property-hooks
int(2) int(1) int(2) int(2)

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