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2017-03-04 05:36
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Laravel:循环遍历数组并将其转换为修改后的数组,其中包含一个键中的原始数组

I have a data array that contains food items and looks like this.

[
  {
    "itemId": 80001,
    "name": "FRENCH FRIES SMALL",
    "description": "More delicious than ever, our signature piping hot, thick cut Salted French Fries are golden on the outside and fluffy on the inside.",
    "price": 6,
    "slug": "french-fries-small-80001"
  },
  {
    "itemId": 80002,
    "name": "FRENCH FRIES MEDIUM",
    "description": "More delicious than ever, our signature piping hot, thick cut Salted French Fries are golden on the outside and fluffy on the inside.",
    "price": 7,
    "slug": "french-fries-medium-80002"
  },
  {
    "itemId": 80003,
    "name": "FRENCH FRIES LARGE",
    "description": "More delicious than ever, our signature piping hot, thick cut Salted French Fries are golden on the outside and fluffy on the inside.",
    "price": 8,
    "slug": "french-fries-large-80003"
  },
  {
    "itemId": 80052,
    "name": "CRINCKLE WEDGES SMALL",
    "description": "CRINCKLE WEDGES SMALL",
    "price": 7,
    "slug": "crinckle-wedges-small-80052",
    "sequence": 14
  },
  {
    "itemId": 80053,
    "name": "CRINCKLE WEDGES MEDIUM",
    "description": "CRINCKLE WEDGES MEDIUM",
    "price": 8,
    "slug": "crinckle-wedges-medium-80053",
    "sequence": 15
  },
  {
    "itemId": 80054,
    "name": "CRINCKLE WEDGES LARGE",
    "description": "CRINCKLE WEDGES LARGE",
    "price": 9,
    "slug": "crinckle-wedges-large-80054",
    "sequence": 16
  },

]

Now I have to loop through that array and if the name has either SMALL, MEDIUM, or LARGE I have to reformat the data so that it should look something like this e.g.

{
  "itemId": 80001,
  "name": "FRENCH FRIES",
  "description": "More delicious than ever, our signature piping hot, thick cut Salted French Fries are golden on the outside and fluffy on the inside.",
  "itemModifiers": [
    {
      "itemId": 80001,
      "name": "FRENCH FRIES SMALL",
      "description": "More delicious than ever, our signature piping hot, thick cut Salted French Fries are golden on the outside and fluffy on the inside.",
      "price": 6,
      "slug": "french-fries-small-80001"
    },
    {
      "itemId": 80002,
      "name": "FRENCH FRIES MEDIUM",
      "description": "More delicious than ever, our signature piping hot, thick cut Salted French Fries are golden on the outside and fluffy on the inside.",
      "price": 7,
      "slug": "french-fries-medium-80002"
    },
    {
      "itemId": 80003,
      "name": "FRENCH FRIES LARGE",
      "description": "More delicious than ever, our signature piping hot, thick cut Salted French Fries are golden on the outside and fluffy on the inside.",
      "price": 8,
      "slug": "french-fries-large-80003"
    }
  ],
  "slug": "french-fries-80001",
  "sequence": 8
}

The legacy system of the client was designed poorly and they are requiring an api that properly formats the data into a more granularized format. I was trying to figure out as to how do this. Please take note that the original array has more items than my example and I should loop through each one of them. Should I rebuild the data from scratch? Or is there a better way of doing this while looping through the array?

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2条回答 默认 最新

  • doushou1298 2017-03-04 10:24
    已采纳

    You could use Collections and do something like:

    $data = collect(json_decode($data, true))
        ->map(function ($item) {
            return collect($item);
        })
        ->groupBy(function ($item) {
            return trim(str_replace(['SMALL', 'MEDIUM', 'LARGE'], '', $item['name']));
        })
        ->map(function ($items) {
    
            if ($items->count() > 2) {
    
                return $items;
            }
    
            $parent = $items->first()->except('price');
            $parent->put('itemModifiers', $items);
    
            return $parent;
        });
    

    If you would prefer something a little shorter for the last map you could inline it :

    ->map(function ($items) {
        return $items->count() < 2 ? $items : $items->first()->except('price')->put('itemModifiers', $items);
    });
    

    Hope this helps!

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  • dqrq93879 2017-03-04 06:47
    {"FRENCH FRIES":[{"itemId":80001,"name":"FRENCH FRIES SMALL","description":"More delicious than ever, our signature piping hot, thick cut Salted French Fries are golden on the outside and fluffy on the inside.","price":6,"slug":"french-fries-small-80001"},{"itemId":80002,"name":"FRENCH FRIES MEDIUM","description":"More delicious than ever, our signature piping hot, thick cut Salted French Fries are golden on the outside and fluffy on the inside.","price":7,"slug":"french-fries-medium-80002"},{"itemId":80003,"name":"FRENCH FRIES LARGE","description":"More delicious than ever, our signature piping hot, thick cut Salted French Fries are golden on the outside and fluffy on the inside.","price":8,"slug":"french-fries-large-80003"}],"CRINCKLE WEDGES":[{"itemId":80052,"name":"CRINCKLE WEDGES SMALL","description":"CRINCKLE WEDGES SMALL","price":7,"slug":"crinckle-wedges-small-80052","sequence":14},{"itemId":80053,"name":"CRINCKLE WEDGES MEDIUM","description":"CRINCKLE WEDGES MEDIUM","price":8,"slug":"crinckle-wedges-medium-80053","sequence":15},{"itemId":80054,"name":"CRINCKLE WEDGES LARGE","description":"CRINCKLE WEDGES LARGE","price":9,"slug":"crinckle-wedges-large-80054","sequence":16}]}
    

    Code

    $original = json_decode($original);
    $output = array();
    foreach ($original as $key => $row) {
      $newName = str_replace('SMALL', '', $row->name);
      $newName = str_replace('MEDIUM', '', $newName);
      $newName = str_replace('LARGE', '', $newName);
      $newName = trim($newName);
      if(in_array($newName,$output)){
        array_push($test[$newName], $row);
      }else{
         array_push($output, $newName);
         $test[$newName] = array();
         array_push($test[$newName], $row);
      }
    
    }
    echo "<h3>Output</h3><pre>"; print_r(json_encode($test)); exit;
    
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