如何使用curl和php上传文件

采用：

if (function_exists('curl_file_create')) { // php 5.5+  $cFile = curl_file_create($file_name_with_full_path);} else { //   $cFile = '@' . realpath($file_name_with_full_path);}$post = array('extra_info' => '123456','file_contents'=> $cFile);$ch = curl_init();curl_setopt($ch, CURLOPT_URL,$target_url);curl_setopt($ch, CURLOPT_POST,1);curl_setopt($ch, CURLOPT_POSTFIELDS, $post);$result=curl_exec ($ch);curl_close ($ch);