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

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