How does PHP respond to post requests to upload files

This article is about how PHP uploads files in response to post requests. Xiaobian thinks it is quite practical, so share it with everyone for reference. Let's follow Xiaobian and have a look.

The details are as follows:

function send_file($url, $post = '', $file = '') { $eol = "\r\n"; $mime_boundary = md5 ( time () ); $data = ''; $confirmation = ''; date_default_timezone_set ( "Asia/Shanghai" ); $time = date ( "Y-m-d H:i:s " ); $post ["filename"] = $file [filename]; foreach ( $post as $key => $value ) { $data .= '--' . $mime_boundary . $eol; $data .= 'Content-Disposition: form-data; '; $data .= "name=" . $key . $eol . $eol; $data .= $value . $eol; } $data .= '--' . $mime_boundary . $eol; $data .= 'Content-Disposition: form-data; name=' . $file [name] . '; filename=' . $file [filename] . $eol; $data .= 'Content-Type: text/plain' . $eol; $data .= 'Content-Transfer-Encoding: binary' . $eol . $eol; $data .= $file [filedata] . $eol; $data .= "--" . $mime_boundary . "--" . $eol . $eol; $params = array ('http' => array ('method' => 'POST', 'header' => 'Content-Type: multipart/form-data;boundary=' . $mime_boundary . $eol, 'content' => $data ); $ctx = stream_context_create ( $params ); $response = file_get_contents ( $url, FILE_TEXT, $ctx ); return $response;} Thank you for reading! About "PHP how to respond to post requests upload files" This article is shared here, I hope the above content can have some help for everyone, so that everyone can learn more knowledge, if you think the article is good, you can share it to let more people see it!