How do I create a file upload progress bar in PHP?

In开发者_如何学Python my PHP web site, i want to create a file uploading progress bar. I have used many code, but it's not working. My PHP version is 5.2.8 and sever is in Linux. Please give me a solution.

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use APC_UPLOAD_PROGRESS from APC.

http://php.net/manual/en/ref.apc.php

The tutorial Kalium posted shows how to use it.

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Here, have a tutorial on the subject.

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Solution: learn how HTML, Internet communication, and server-side processing work. Understand that your problem is not related to PHP. HAND.