class UploadPart{ ??????protected static $url; ???protected static $delimiter; ???protected static $instance; ???public function __construct() { ???????static::$url = ‘http://files.note.so/v1/file_server‘; ???????static::$delimiter = uniqid(); ???} ???public function putPart($param) { ???????$post_data = static::buildData($param); ???????$curl = curl_init(static::$url); ???????curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); ???????curl_setopt($curl, CURLOPT_POST, true); ???????curl_setopt($curl, CURLOPT_POSTFIELDS, $post_data); ???????curl_setopt($curl, CURLOPT_HTTPHEADER, [ ???????????"Content-Type: multipart/form-data; boundary=" . static::$delimiter, ???????????"Content-Length: " . strlen($post_data) ???????]); ???????$response = curl_exec($curl); ???????curl_close($curl); ???????$info = json_decode($response, true); ???????if (!is_array($info[‘Msg‘]) && $info[‘Msg‘] == $param[‘filesize‘]) { ???????????$param[‘offset‘] = $param[‘filesize‘]; ???????????$param[‘upload‘] = ‘‘; ???????????return $this->putPart($param); ???????} ???????return $response; ???} ???private static function buildData($param){ ???????$data = ‘‘; ???????$eol = "\r\n"; ???????$upload = $param[‘upload‘]; ???????unset($param[‘upload‘]); ???????foreach ($param as $name => $content) { ???????????$data .= "--" . static::$delimiter . "\r\n" ???????????????. ‘Content-Disposition: form-data; name="‘ . $name . "\"\r\n\r\n" ???????????????. $content . "\r\n"; ???????} ???????// 拼接文件流 ???????$data .= "--" . static::$delimiter . $eol ???????????. ‘Content-Disposition: form-data; name="upload"; filename="‘ . $param[‘filename‘] . ‘"‘ . "\r\n" ???????????. ‘Content-Type:application/octet-stream‘."\r\n\r\n"; ???????$data .= $upload . "\r\n"; ???????$data .= "--" . static::$delimiter . "--\r\n"; ???????return $data; ???} ???public static function getInstance() { ???????if(!static::$instance){ ???????????static::$instance = new static(); ???????} ??????return static::$instance; ???}}使用方法
$fields = array( ???‘type‘ => ‘video‘, ???‘filename‘ => ‘1407.png‘, ???‘filesize‘ => 58701, ???‘offset‘ => 0, ???‘filetype‘ => ‘.acc‘, ???‘originName‘ => ‘1407.png‘, ???‘upload‘=>file_get_contents(‘0407.png‘));$part = UploadPart::getInstance()->putPart($fields);PHP中以multipart/form-data上传文件流
原文地址：http://blog.51cto.com/suiwnet/2125883