Reduce memory consumption in PHP while handling uploads by php input
There's a hack, which is about faking content type header, turning it from application/octet-stream to multipart/form-data. It will stop PHP from populating $HTTP_RAW_POST_DATA. More details https://github.com/valums/file-uploader/issues/61.
Have been in the same shoe before and this is what i did split the files into different chunks during the upload process.
I good example is using [1]: http://www.plupload.com/index.php "pulpload" or trying using a java applet http://jupload.sourceforge.net which also has resume capability when there are network issues etc.
The most important thing is that you want your files uploaded via a web browser there is noting stopping you from doing so in chunks