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<?php function assign(&$a, &$b, &$c) { static $i = 0; $a = 'a' . $i; $b = 'b' . $i; $c = 'c' . $i; $i++;} $ar_e = array('d' => null); assign($ar['a'], $direct, $ar_e['d']); assign($ar['a'], $direct, $ar_e['d']); var_dump($ar, $direct, $ar_e);
Output for git.master, git.master_jit, rfc.property-hooks
array(1) { ["a"]=> string(2) "a1" } string(2) "b1" array(1) { ["d"]=> string(2) "c1" }

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