Php 带有price参数的数组过滤器JSON数据

我有这个JSON数据，我正在使用这个代码来匹配标题。它是有效的，但现在我想更进一步，列出所有低于某个价格、高于某个价格或等于某个价格的产品

$json = '[{
    "id": 2042049298481,
    "title": "Test Product 53",
    "variants": [{
        "id": 15733087797297,
        "title": "Default Title",
        "price": "100.00",
        "sku": "no"
    }]
}, {
    "id": 2196682342449,
    "title": "its test yar",
    "variants": [{
        "id": 16385289879601,
        "title": "Default Title",
        "price": "144.00",
        "sku": "no"
    }]
}, {
    "id": 4175970041905,
    "title": "uhjkjhkhk",
    "variants": [{
        "id": 30302326554673,
        "title": "Default Title",
        "price": "1000.00",
        "sku": "10"
    }]
}, {
    "id": 4183828791345,
    "title": "kaminsss",
    "variants": [{
        "id": 30346449518641,
        "title": "Default Title",
        "price": "111.00",
        "sku": "no"
    }]
}, {
    "id": 4247884890161,
    "title": "hellooo",
    "variants": [{
        "id": 30579860832305,
        "title": "Default Title",
        "price": "1111.00",
        "sku": "no"
    }]
}, {
    "id": 4248143822897,
    "title": "10oct latest collection",
    "variants": [{
        "id": 31157780938801,
        "title": "50",
        "price": "111.00",
        "sku": "no-1"
    }, {
        "id": 31157802270769,
        "title": "60",
        "price": "101.00",
        "sku": ""
    }, {
        "id": 31157804761137,
        "title": "70",
        "price": "111.00",
        "sku": ""
    }]
}, {
    "id": 4284600746033,
    "title": "18oct2019",
    "variants": [{
        "id": 31595410030641,
        "title": "120 / black",
        "price": "100.00",
        "sku": "10"
    }]
}, {
    "id": 4285596860465,
    "title": "test2222",
    "variants": [{
        "id": 30877916921905,
        "title": "Default Title",
        "price": "111.00",
        "sku": "no"
    }]
}]';
$array = json_decode($json,1);
$filter_name ='title';
$filter_value ='Test';
$expected88 = array_filter($array, function($el) use ($filter_value, $filter_name) {
       return ($el[$filter_name] >= $filter_value);

}); 

echo json_encode($expected88,true);

这对

标题

来说是完美的，但我们希望根据

变体价格

进行过滤。一个变量可能有多个价格，如果

$filter\u value

大于、等于或小于，则可能出现任何情况

例如，用户可以搜索最低价格为50的产品，因此在这种情况下，如果任何变体符合标准，则它将列出这些产品，或者用户可以搜索所有变体的价格应小于50

我们试过这样做

$expected = array_filter($array, function ($var) use ($filter_value) {
    return ($var[$filter_name] >= $filter_value);
});

但它没有起作用。

---

我们尝试了foreach并再次测试，但结果总是空的

这里是可能的解决方案

$filter_name ='variants';
$filter_value = 200;
$filter_field = "price";


$expected88 = array_filter($array, function($el) use ($filter_value, $filter_name, $filter_field) {
       return ((int)$el[$filter_name][0][$filter_field] >= (int)$filter_value);
}); 

---

如何为价格设置

$filter\u name

，如果没有传入，函数应该如何使用它？过滤器名称和过滤器值是用户请求的数据。对于价格，您将设置什么

$filter\u name

。。。。。。。。。。