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18.1.19 Cache your pages

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Although it is not always possible to cache the output of your PHP scripts, sometimes it becomes a necessity - particularly if your servers are being pushed to the limit despite you deploying a PHP accelerator long ago. In this case, you may well find that you can generate a page one every five minutes or so, then serve the static content up to visitors in-between regenerations.

<< 18.1.18 Debug your code		18.1.20 Use persistent connections >>
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