The knowledge base is a collection of data that's often used for the creation of websites.
Files ending .sql are ready as sql code to import into your (mysql) database. They include the insert statements as well as the create table statements.
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open up the tree and then click on the code files to see a short description here.
The Object Persister can store and load your PHP objects to and from a database.
Give it a few hints about your variables, and everything else is done for you.
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