Turning on APC per site

The Alternative PHP Cache (APC) is commonly used with Yii applications, as it can speed up script running time by a factor of two. Compiled code is kept in shared memory for quick and easy access instead of being compiled each time a script is ran.

The only problem this can bring, is that if you a developing a site and APC is on, you won’t see any changes in your PHP code until APC is flushed.
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