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I’m about uploading file to remote server using fsockopen() without using context. I’m able to post values but I can’t get a way to upload files, like how the header should be arranged, how Content-Length is calculated…. Can anybody give me an example or an explanation of it?
Hell no! Manually managing HTTP connections is a royal pain in the butt. Smarter people than you and I have worked hard to create libraries for us to use. Use one!
I’m partial to Zend_Http_Client, a mostly stand-alone component in the Zend Framework. It has instructions right there in the documentation on how to perform a file upload.
Some people like PEAR’s HTTP_Request2. While it doesn’t have an explicit example on how to do uploads in the manual, it can do so via the
addUploadmethod.If you want something a bit more low-level, you can use the almost-always-there curl extension, which has a variety of file upload options and examples in the manual.
But please, please don’t write your own at the socket level. It is entirely unnecessary and will only lead to pain and horrors.