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IBM developerWorks : Web Architecture : Education - Tutorials
Writing efficient PHP
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1. About this tutorial

Background and motivation page 2 of 6

For a recent consulting engagement, I reviewed a Web application nearing completion. The application was written in PHP, and had some serious performance problems. After a brief look at the code, I decided to search the Internet for any articles or information on tuning the performance of PHP code. To my surprise, I found very little information available. The PHP manual (see Resources) suggested simply throwing in more hardware. In my client's case, this was not always an option. Many systems were already in the field, and this application was a product upgrade. It was not feasible to upgrade every system in the field for this relatively minor product upgrade.

I had to devise my own tests to find ways of improving PHP. Thanks to IBM's developerWorks, I can share these findings with a much broader audience.

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