Can not delete the file zip uploaded using CodeIgniter Zip library

I am using Codeigniter to upload a zip file and extract it to a folder using upload and zip library of Codeigniter 1.7.2

Everything Ok, but my code fails to dele开发者_StackOverflow中文版te the zip file after extract the zip file using extract method.

I got the message 'access deny'.

Anyone help me?

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try restarting your PHP and APACHE, perhaps they have locked the handle to the file !