Php 如何在curl POST请求中执行json查询

我试图在curl POST命令中将以下查询发送到API：

{
  "query": [
    {
      "code": "series1",
      "selection": {
        "filter": "item",
        "values": [
          "1",
          "2",
          "3"
        ]
      }
    },
    {
      "code": "series2",
      "selection": {
        "filter": "item",
        "values": [
          "1",
          "2",
          "3"
        ]
      }
    }
  ],
  "response": {
    "format": "json"
  }
}

到目前为止，我让它工作的唯一方法是使用在线转换器将我的查询硬编码如下：

curl_setopt($ch, CURLOPT_POSTFIELDS, "{\n  \"query\": [\n    {\n      \"code\": \"series1\",\n      \"selection\": {\n        \"filter\": \"item\",\n        \"values\": [\n          \"1\",\n          \"2\",\n          \"3\"\n        ]\n      }\n    },\n    {\n      \"code\": \"series2\",\n      \"selection\": {\n        \"filter\": \"item\",\n        \"values\": [\n          \"1\",\n          \"2\",\n          \"3\"\n        ]\n      }\n    }\n  ],\n  \"response\": {\n    \"format\": \"json\"\n  }\n}\n\n}");

---

是否有更好的方法将查询存储为更可读的格式的变量，并将此变量传递给curl_setopt

使用数组和json编码：

$data = ["query" => "...", "response" => ["format" => "json"]];
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));

upd：您可以尝试这个简单的解决方案

function curl(string $method, string $url, array $data = [])
{
    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_HEADER, false);
    if ('POST' === $method) {
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
    }
    $response = curl_exec($ch);
    curl_close($ch);
    return json_decode($response, true);
}

然后：

curl('POST', 'http://myApi/foo/bar', ['a' => 'b']);

---

是否有一种简单的方法可以将查询测试转换为示例中的数组？@FilipBlaauw

$data=var_导出（json_解码（“{”查询“：[{”foo:“bar”}]}'，true）