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<?php $a = [1,2,3]; $b = [4,5,6]; foreach ($a as &$v) { $v += 10; } var_dump($a[2]); foreach ($b as $v) { var_dump($a[2]); $v *= -1; } var_dump($a, $b);
Output for git.master, git.master_jit, rfc.property-hooks
int(13) int(4) int(5) int(6) array(3) { [0]=> int(11) [1]=> int(12) [2]=> &int(-6) } array(3) { [0]=> int(4) [1]=> int(5) [2]=> int(6) }

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