我正在编写一个RESTful API.我使用不同的动词上传图像时遇到麻烦.
考虑:
我有一个可以通过post / put / delete / get请求创建/修改/删除/查看URL的对象.当有要上传的文件时,请求是多部分表单,或者只有文本处理时,应用程序/ xml.
要处理与对象相关联的图像上传,我正在做如下事情:
if(isset($_FILES['userfile'])) { $data = $this->image_model->upload_image(); if($data['error']){ $this->response(array('error' => $error['error'])); } $xml_data = (array)simplexml_load_string( urldecode($_POST['xml']) ); $object = (array)$xml_data['object']; } else { $object = $this->body('object'); }
这里的主要问题是在尝试处理put请求时,显然$_POST不包含put数据(据我所知)!
作为参考,这是我如何构建请求:
curl -F userfile=@./image.png -F xml="<xml><object>stuff to edit</object></xml>" http://example.com/object -X PUT
有没有人有任何想法,我如何可以访问我的PUT请求中的xml变量?
首先,处理PUT请求时,$_FILES不会被填充.在处理POST请求时,它仅由PHP填充.
您需要手动解析.这也适用于“常规”领域:
// Fetch content and determine boundary $raw_data = file_get_contents('PHP://input'); $boundary = substr($raw_data,strpos($raw_data,"\r\n")); // Fetch each part $parts = array_slice(explode($boundary,$raw_data),1); $data = array(); foreach ($parts as $part) { // If this is the last part,break if ($part == "--\r\n") break; // Separate content from headers $part = ltrim($part,"\r\n"); list($raw_headers,$body) = explode("\r\n\r\n",$part,2); // Parse the headers list $raw_headers = explode("\r\n",$raw_headers); $headers = array(); foreach ($raw_headers as $header) { list($name,$value) = explode(':',$header); $headers[strtolower($name)] = ltrim($value,' '); } // Parse the Content-Disposition to get the field name,etc. if (isset($headers['content-disposition'])) { $filename = null; preg_match( '/^(.+); *name="([^"]+)"(; *filename="([^"]+)")?/',$headers['content-disposition'],$matches ); list(,$type,$name) = $matches; isset($matches[4]) and $filename = $matches[4]; // handle your fields here switch ($name) { // this is a file upload case 'userfile': file_put_contents($filename,$body); break; // default for all other files is to populate $data default: $data[$name] = substr($body,strlen($body) - 2); break; } } }
在每次迭代时,$data数组将用你的参数填充,$headers数组将用每个部分的头部填充(例如:Content-Type等),$filename将包含原来的文件名,if在请求中提供并适用于该领域.