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08-17-2012, 08:49 PM
#4
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I don't think there is a direct conversion because mysql queries from the depreciated library are built as a string then sent while mysqli uses parameters. Parameters send the variables at a later time than the query, so your queries might look like

"SELECT something FROM a_database WHERE something=? and something_else=?"

You'd send that to the database then tell it to bind those two variables before you actually execute it. This makes SQL injection literally impossible and is a lot faster. If you are just building a query like you would have before you may as well not convert.