```
<?php

$url = "https://sm.ms/api/v2/upload";
$headers = array();
array_push($headers, "Content-Type: multipart/form-data");
//agent 我复制的我浏览器的 你换乘你对应的就行了
array_push($headers, "User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.97 Safari/537.36");
$file_path = 'your file path';
if (function_exists('curl_file_create')) {
$cFile = curl_file_create($file_path);
} else { //
$cFile = '@' . realpath($file_path);
}
$fields = array('smfile' => $cFile);

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_POST,1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_POSTFIELDS, $fields);

$result=curl_exec ($ch);
curl_close($ch);

var_dump(curl_exec($ch));
```