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<?php $array = [ ["item_id" => "1", "customer_id" => "53453", "name" => "Item3", "price" => 0, "quantity" => 1], ["item_id" => "3","customer_id" => "53453","name" => "Item1","price" => 0,"quantity" => 1], ["item_id" => "2","customer_id" => "765656","name" => "Item2","price" => 0,"quantity" => 1], ]; $finalArray = []; foreach ($array as $item) { $customer_id = $item['customer_id']; $finalArray[$customer_id][] = [ 'name' => $item['name'], 'price' => $item['price'], 'quantity' => $item['quantity'], ]; } print_r($finalArray);
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.4, 8.3.6 - 8.3.27, 8.4.1 - 8.4.14
Array ( [53453] => Array ( [0] => Array ( [name] => Item3 [price] => 0 [quantity] => 1 ) [1] => Array ( [name] => Item1 [price] => 0 [quantity] => 1 ) ) [765656] => Array ( [0] => Array ( [name] => Item2 [price] => 0 [quantity] => 1 ) ) )
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Array ( [53453] => Array ( [0] => Array ( [name] => Item3 [price] => 0 [quantity] => 1 ) [1] => Array ( [name] => Item1 [price] => 0 [quantity] => 1 ) ) [765656] => Array ( [0] => Array ( [name] => Item2 [price] => 0 [quantity] => 1 ) ) )

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94.3 ms | 410 KiB | 5 Q