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<?php $a = range(1,10); foreach ($a as &$n) { $n++; echo $n; } var_dump($a);
Output for git.master, git.master_jit, rfc.property-hooks
234567891011array(10) { [0]=> int(2) [1]=> int(3) [2]=> int(4) [3]=> int(5) [4]=> int(6) [5]=> int(7) [6]=> int(8) [7]=> int(9) [8]=> int(10) [9]=> &int(11) }

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