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This chapter is from the book


In this hour, you learned how to use PHP's powerful DBA functions to store and retrieve data. You learned how to use dba_open() to acquire a DBA resource, which you can use with other DBA functions. You learned how to add data to a database with dba_insert(), alter it with dba_replace(), and delete data with dba_delete(). You learned how to use dba_fetch() to retrieve data. You learned how to use serialize() and unserialize() to save complex data structures to a database. Finally, you worked through an example that uses many of the techniques we have examined.

The DBA functions are useful for storing relatively small amounts of data that only needs to be queried in a simple way. Inevitably, our needs will occasionally be more demanding than this. In the next chapter we will cover MySQL, an open source SQL database.

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