php array group by key

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23 May 2020

1  private function group_by($array, $key) {
2      $return = array();
3      
4      foreach($array as $val) {
5          $return[$val->$key][] = $val; 
6	  //  ou para gettype($val) = array
7	  //  $return[$val[$key]][] = $val; 
8      }
9      return $return;
10  }

source

Matteo

17 Aug 2020

1$arrRoom[] = array("RoomCode" => "Deluxe",
2                    "Rates" => array ( array(
3                        "BoardCode" => "RO",
4                        "Price" => 100)
5                    ));
6$arrRoom[] = array("RoomCode" => "Standard",
7                    "Rates" => array ( array(
8                        "BoardCode" => "RO",
9                        "Price" => 100)                        
10                    ));                    
11$arrRoom[] = array("RoomCode" => "Deluxe",
12                    "Rates" => array (array(
13                        "BoardCode" => "RO",
14                        "Price" => 200)
15                    ));
16
17foreach($arrRoom as $room)
18{    
19    foreach($room['Rates'] as $rates)
20    {        
21        $nRooms[$room['RoomCode']][$rates['BoardCode']][] = array("RoomCode" => $room['RoomCode'],
22                                                            "MealCode" => $rates['BoardCode'],
23                                                            "Price" => $rates['Price']);
24    }
25}
26echo "\n ==== Output in Json Format ==== \n";
27{
28    "Deluxe": {
29        "RO": [
30            {
31                "RoomCode": "Deluxe",
32                "MealCode": "RO",
33                "Price": 100
34            },
35            {
36                "RoomCode": "Deluxe",
37                "MealCode": "RO",
38                "Price": 200
39            }
40        ]
41    },
42    "Standard": {
43        "RO": [
44            {
45                "RoomCode": "Standard",
46                "MealCode": "RO",
47                "Price": 100
48            }
49        ]
50    }
51}

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