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<?php $array = [ ["Reservation" => ["adult_price" => 200, "adult_count" => 2]], ["Reservation" => ["adult_price" => 200, "adult_count" => 1]], ["Reservation" => ["adult_price" => 300, "adult_count" => 1]], ["Reservation" => ["adult_price" => 200, "adult_count" => 1]], ]; $grouped = []; foreach ($array as $item) { $item = $item["Reservation"]; $currentValue = isset($grouped[$item["adult_price"]]) ? $grouped[$item["adult_price"]] : 0; $grouped[$item["adult_price"]] = $currentValue + $item["adult_count"]; } $buildArray = []; foreach ($grouped as $price => $count) { $buildArray[] = ["Reservation" => ["adult_price" => $price, "adult_count" => $count]]; } print_r($buildArray);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => Array ( [Reservation] => Array ( [adult_price] => 200 [adult_count] => 4 ) ) [1] => Array ( [Reservation] => Array ( [adult_price] => 300 [adult_count] => 1 ) ) )

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