PHP通过cURL发送本地文件

我试图通过客户端curl应用程序发送本地文件.我找到了一些示例来处理表单中的文件.就我而言,我没有表单,但是有一个本地文件.

$fileName = $_SERVER["DOCUMENT_ROOT"]."/www/images/test.pdf";

if(!file_exists($fileName)) {
       $out['status'] = 'error';
       $out['message'] = 'File not found.';
       exit(json_encode($out));
}
$data = array('name' => 'Foo', 'file' => '@'.$fileName);

$cURL = curl_init("http://myapi/upload-images");
curl_setopt($cURL, CURLOPT_RETURNTRANSFER, true);
curl_setopt($cURL, CURLOPT_POST, 1);
curl_setopt($cURL, CURLOPT_POSTFIELDS, $data);

$response = curl_exec($cURL);
$error = curl_error($cURL);
curl_close($cURL);

die($response);

这样,我就没有错误了,但是在服务器中$_POST和$_SERVER数组为空.

我尝试过否则,这次在发送之前创建一个Curl文件：

// Mime type of file 
$finfo = finfo_open(FILEINFO_MIME_TYPE);
$finfo = finfo_file($finfo, $fileName);

$cFile = new CURLFile($fileName, $finfo, "file");

//var_dump($cFile);
//CURLFile Object
//(
//   [name] => C:/.../test.pdf
//   [mime] => application/pdf
//   [postname] => file
// )

$cURL = curl_init("http://myapi/upload-images");
curl_setopt($cURL, CURLOPT_RETURNTRANSFER, true);
curl_setopt($cURL, CURLOPT_POST, true);
curl_setopt($cURL, CURLOPT_POSTFIELDS, 
array(
     'file' => $cFile
));

$response = curl_exec($cURL);
curl_close($cURL);

die($response);

相同的反应. $_FILES为空.

解决方法:

最后,我找到了问题的原因.包含文件数据的数组必须具有filedata和filename密钥.

我们可以在文件名前使用全路径传递“ @”,但已弃用.

$data = array( "filedata" => '@'.$fileName, "filename" => basename($fileName));

在这种情况下,我添加了一个Curl对象：

$finfo = finfo_open(FILEINFO_MIME_TYPE);
$finfo = finfo_file($finfo, $fileName);

$cFile = new CURLFile($fileName, $finfo, basename($fileName));

$data = array( "filedata" => $cFile, "filename" => $cFile->postname);

完整的代码是：

$fileName = $_SERVER["DOCUMENT_ROOT"]."/www/images/test.pdf";
$fileSize = filesize($fileName);

if(!file_exists($fileName)) {
    $out['status'] = 'error';
    $out['message'] = 'File not found.';
    exit(json_encode($out));
}

$finfo = finfo_open(FILEINFO_MIME_TYPE);
$finfo = finfo_file($finfo, $fileName);

$cFile = new CURLFile($fileName, $finfo, basename($fileName));
$data = array( "filedata" => $cFile, "filename" => $cFile->postname);

$cURL = curl_init("http://myapi/upload-images")
curl_setopt($cURL, CURLOPT_RETURNTRANSFER, true);

// This is not mandatory, but is a good practice.
curl_setopt($cURL, CURLOPT_HTTPHEADER,
    array(
        'Content-Type: multipart/form-data'
    )
);
curl_setopt($cURL, CURLOPT_POST, true);
curl_setopt($cURL, CURLOPT_POSTFIELDS, $data);
curl_setopt($cURL, CURLOPT_INFILESIZE, $fileSize);

$response = curl_exec($cURL);
curl_close($cURL);


die($response);

标签：curl,restful-architecture,upload,php
来源： https://codeday.me/bug/20191121/2048335.html