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| | PHP Help, PHP Programming, PHP Code, PHP Tutorials |
 | | Welcome to part two of the series "Building Object-Oriented Database Interfaces in PHP." In the previous article, I offered complete coverage of the role that database interfaces play in Web applications, highlighting the immediate benefits of having a centralized mechanism for accessing, processing and verifying data, within an object-oriented environment. |
 | | In the first article of this series, the concept of composition in object-oriented programming was explained, and illustrated with an example that implemented composition using two simple classes. |
 | | This article, the first in the series, serves as an introduction to some of the things you can do with aggregation. |
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