如何使用 where 集合 laravel 在数组中进行搜索

Question

我有这样的数据数组：

[
   {
      fruit: "Apple",
      price: "10",
   },
   {
      fruit: "Orange",
      price: "12",
   },
   {
      fruit: "Manggo",
      price: "14",
   },
   {
      fruit: "Grape",
      price: "16",
   },
  {
      fruit: "Apple",
      price: "13",
   },
]

如何从我的数据中使用搜索方法来查找具有输入类型的数据？在此之前，我想展示我所做的，这是我的代码：

$search = "Apple"; // let's just say the value of this variable comes from the input type

$myData = [
   [fruit: "Apple", price: "10"],
   [fruit: "Orange", price: "12"],
   [fruit: "Manggo", price: "14"],
   [fruit: "Grape", price: "16"],
   [fruit: "Apple", price: "13"],
];

$getSearch = collect($myData)->where('fruit', $search)->all();

var_dump($getSearch);

对于输出，我没有从我的结果中得到任何东西，就像这样：

array(0) {

}
array(0) {

}
array(0) {

}
array(0) {

}

为了期待，我的结果变成了这样：

[
   {
      fruit: "Apple",
      price: "10",
   },
   {
      fruit: "Apple",
      price: "13",
   },
]

Answer 1

您的 $myData 不是有效的 php 数组

参考链接https://www.php.net/manual/en/language.types.array.php

这是解决办法

$myData  = [
    [
        'fruit' => 'Apple',
        'price' => '10',
    ],
    [
        'fruit' => 'Orange',
        'price' => '12',
    ],
    [
        'fruit' => 'Manggo',
        'price' => '14',
    ],
    [
        'fruit' => 'Grape',
        'price' => '16',
    ],
    [
        'fruit' => 'Apple',
        'price' => '13',
    ]
];

$search = "Apple"; 
$getSearch = collect($myData)->where('fruit', $search)->all();
var_dump($getSearch);

这段代码结果是

{
    "0": {
        "fruit": "Apple",
        "price": "10"
    },
    "4": {
        "fruit": "Apple",
        "price": "13"
    }
}