Facebook Graph API PHP 和 cURL

Question

我只是想对 Facebook Graph API 进行最基本的测试。我正在使用 PHP 和 cURL。我直接从 Facebook Payload Helper 复制数据字符串。一切看起来都正确，但我收到消息：

string(135) "{"error":{"message":"(#100) 参数数据为必填","type":"OAuthException","code":100,"fbtrace_id":"Age1fgb47kngho3guOkcAcj"} }“

该消息告诉我“data”参数未设置，但您可以看到它已设置在数据字符串中。请参阅下面的我的代码。任何调试方面的帮助将不胜感激。

<?php
$url = "https://graph.facebook.com/v10.0/<PIXEL ID>/events?access_token=<TOKEN>";

$curl = curl_init($url);
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);

$headers = array(
    "content-type: multipart/form-data",
);
curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);

$data = '{
    "data": [
        {
            "event_name": "Purchase",
            "event_time": '.time().',
            "action_source": "website", 
            "event_id": '.rand(100000, 500000).',
            "user_data": {
                "em": "6b583232e99af45c3b436798f32800a4dd6f3524624ba6507ed8269b53ce82a3",
                "ph": null
            },
            "custom_data": {
                "currency": "USD",
                "value": "37"
            }
        }
    ],
    "test_event_code":"TEST9031"
}';

curl_setopt($curl, CURLOPT_POSTFIELDS, $data);

$resp = curl_exec($curl);
curl_close($curl);
var_dump($resp);
?>

Answer 1

如果有帮助的话，我做了一个包含此方法的类来将数据发送到 Facebook 的 API：

/** @var string url to accede to Facebook API */
private $apiUrl = "https://graph.facebook.com/v12.0";

/** @var int id of pixel used with Facebook API */
private $pixelId = 0000000000000;

/** @var string token to accede to Facebook API */
private $token = "QWERTY...";

/** @var string|null code to specify test to Facebook API */
private $testEventCode = "TEST00000";

/** Send datas to Facebook's API
 *
 * @param array datas to send like ['event_name' => 'ViewContent', ... ]
 *
 * @return string|bool
 */
public function sendData(array $data)
{
    $fields = [
        'access_token' => $this->token,
        'test_event_code' => $this->testEventCode,
        'data' => [$data],
    ];

    $ch = curl_init();
    curl_setopt_array($ch, [
        CURLOPT_URL => "{$this->apiUrl}/{$this->pixelId}/events",
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_CUSTOMREQUEST => "POST",
        CURLOPT_POSTFIELDS => json_encode($fields),
        CURLOPT_HTTPHEADER => [
            "cache-control: no-cache",
            "accept: application/json",
            "content-type: application/json",
        ],
    ]);

    return curl_exec($ch);
}