PHP cURL不能正确设置内容长度

Question

<?php
if(isset($_POST["id"])) {
  $data = array("id" => $_POST["id"]);
  $data["file"] = "@".realpath($_FILES["file"]["tmp_name"]);
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_HEADER, 0);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  curl_setopt($ch, CURLOPT_HTTPHEADER, array(
    'Authorization: Bearer 0e39ffba-66cd-4933-9e94-fcdf600c2453',
    'Connection: keep-alive'
  ));
  curl_setopt($ch, CURLOPT_URL, "http://localhost:8080/test-api/upload");
  curl_setopt($ch, CURLOPT_POST, true);
  curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
  curl_setopt($ch, CURLOPT_VERBOSE, false);
  curl_setopt($ch, CURLOPT_HTTP_VERSION, 1);
  $response = curl_exec($ch);
  var_dump($response);
  exit;
}
?>

INFO: 25 * Server has received a request on thread http-nio-8080-exec-1
25 > POST http://localhost:8080/test-api/upload
25 > authorization: Bearer 0e39ffba-66cd-4933-9e94-fcdf600c2453
25 > connection: keep-alive
25 > content-length: 261
25 > content-type: multipart/form-data; boundary=------------------------53f7ba34739b4d9e
25 > host: localhost:8080

INFO: 26 * Server has received a request on thread http-nio-8080-exec-3
26 > POST http://localhost:8080/test-api/upload
26 > accept-encoding: gzip, deflate
26 > accept-language: hu-HU,hu;q=0.8,en-US;q=0.6,en;q=0.4
26 > authorization: Bearer 0e39ffba-66cd-4933-9e94-fcdf600c2453
26 > cache-control: no-cache, no-cache
26 > connection: keep-alive
26 > content-length: 144954
26 > content-type: multipart/form-data; boundary=----WebKitFormBoundarye5Tg0kEqi10nEBwv
26 > cookie: ff_uvid=126143952; _ga=GA1.1.459454356.1439469592; CAKEPHP=9mffidqo8203ugktan4roc0u82
26 > host: localhost:8080
26 > origin: chrome-extension://fdmmgilgnpjigdojojpjoooidkmcomcm
26 > user-agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36

Answer 1

听起来您使用的是PHP 5.6.0或更高版本。从这个版本开始，默认情况下禁用文件上载的@前缀。您可以使用

curl_setopt($ch, CURLOPT_SAFE_UPLOAD, false);

这个选项是在5.5中添加的，但是为了向后兼容，默认值是false；5.6不兼容地更改了默认值。

从5.5开始执行文件上传的首选方法是使用CurlFile类。

$data["file"] = new CurlFile(realpath($_FILES["file"]["tmp_name"]));