计算 JSON 数组中相同值的数量并将其转换为字符串

Question

我的

JSON

看起来像这样：

[
   {"pet_type":"Dog","weight":"26","description":"Akita"},
   {"pet_type":"Dog","weight":"6","description":"Pug"},
   {"pet_type":"Cat","weight":"4","description":"Manx"},
   {"pet_type":"Dog","weight":"12","description":"Beagle"},
   {"pet_type":"Cat","weight":"5","description":"Siberian"}
]

我怎样才能将它转换为一个看起来像

3 Dogs, 2 Cats

的字符串？

我尝试的方法是用

array

填充

pet_type

，然后使用

array_count_values

来计算相同记录的数量，然后我在

foreach

中遍历该数组并连接字符串，如下所示：

foreach ($count_animals as $type => $number) {
   $animals .=  $number.' '.str_plural($type, $number).', ';
}

这可行，但我的问题是，我可以用更少的代码直接从

JSON

做到这一点，而不使用更多的

foreach

循环吗？

Answer 1

如果有效，您可以保留您的代码。

如果你想要更少的代码，你可以使用这个版本：

$json = '[
   {"pet_type":"Dog","weight":"26","description":"Akita"},
   {"pet_type":"Dog","weight":"6","description":"Pug"},
   {"pet_type":"Cat","weight":"4","description":"Manx"},
   {"pet_type":"Dog","weight":"12","description":"Beagle"},
   {"pet_type":"Cat","weight":"5","description":"Siberian"}
]';


print_r(array_count_values(array_map(function($item) {
   return $item['pet_type'];
}, json_decode($json, true))));

将显示：

Array ( [Dog] => 3 [Cat] => 2 )

Answer 2

in your controller
$pet = Pet::get();
$petcount = Pet::where('pet_type','Dog')->get();

In your blade
 <h1>{{count($petcount)}} Dog</h1>