You can think of PHP preprocessing as a compiled template of the SQL you want to run, which can be customized using variable parameters.
Benefits of PHP preprocessing:
1. The query only needs to be parsed (or preprocessed) once, but can be executed multiple times with the same or different parameters. When a query is ready, the database will analyze, compile, and optimize
the plan for executing the query. For complex queries, this process takes a long time, and if the same query needs to be repeated multiple times with different parameters, this process will significantly slow down the application. By using prepared statements, you can avoid repeated analysis/compile/optimization cycles. In short, prepared statements take up fewer resources and run faster because of
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occur. (However, if other parts of the query are constructed from unescaped input, there is still a risk of SQL injection).
INSERT INTO MyGuests (firstname, lastname, email) VALUES(?, ?, ?)
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