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<?php $members = [ 'myname' => ['userid' => 52, 'age' => 46], 'isname' => ['userid' => 22, 'age' => 47], 'yourname' => ['userid' => 47, 'age' => 85] ]; foreach ($members as $key => $item) { array_push($members[$key], $key); } var_export($members);

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23.82 ms | 405 KiB | 5 Q