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<?php $rows = [ "3" => [ "id" => 3, "name" => "Lorem", "type" => "pl" ], "2" => [ "id" => 2, "name" => "Ipsum", "type" => "pl" ] ]; $map = [ "6" => "Sit dolor", "4" => "nostrud exercitation ullamco", "3" => "uuntur magni dolores", "2" => "corporis suscipit laboriosam", "7" => "quia non numquam eius modi tempora", ]; var_export( array_map( fn($row) => $row + ['new_key' => $map[$row['id']]], $rows ) );
Output for git.master_jit, git.master
array ( 3 => array ( 'id' => 3, 'name' => 'Lorem', 'type' => 'pl', 'new_key' => 'uuntur magni dolores', ), 2 => array ( 'id' => 2, 'name' => 'Ipsum', 'type' => 'pl', 'new_key' => 'corporis suscipit laboriosam', ), )

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