https://www.icyphoenix.com/viewtopic.php?f=35&t=2963&p=20653#p20653
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enridp
Sun 21 Oct, 2007 23:27

Re: Use FTP To Upload Big Files
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Thinking and reading a bit more, I can't see any way that a PHP script can read a file from a client computer to upload it to an FTP site. And I think these are good news, just think of the security implications. 
I think the FTP functions are designed to upload files from local server to another server. 
Then, how can we bypass the filesize limits from the server?. I think I can do it with CGI, but if there is an easier way, please tell me, I really need it.

Something "strange" that I've noticed is the time it takes the file to upload, I mean, when I'm posting a file > 8MB, it seems to delay more than an 8MB file, just like if the server was receiving more than 8MB... 
When you upload a file that is to large, it still goes to the server??, 
Is the check of the limit on the move_uploaded_file function?
If so, would be possible ftp the file from the temp directory to the ftp folder because the file is already on the server?