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<?php $values = array('a' => 1, 'b' => 2, 'c' => 3, 'd' => 4); $sum = 0; foreach ($values as &$value) $value++; unset($value); foreach ($values as $value) $sum += $value; print_r($values);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [a] => 2 [b] => 3 [c] => 4 [d] => 5 )

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