Use input filtering in the PDO section #26
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Somehow, this pull request (codeguy#26) went missing in the move to `gh-pages`. But it's fairly critical, since the example has `$_GET` being passed straight into a `PDO` statement. On a write (`INSERT` or `UPDATE`), this can still result in dangerous data (to the app, not to SQL) being written accidentally by a new PHP developer. Data should always be filtered prior to use.
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translate Mac Setup. codeguy#25
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Переформулировка, опечатки
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Since the section right above suggests (rightly) to use input filtering, makes sense that we should use it at the critical junction of inserting into the DB, even if PDO does properly sanitize it. It's both safer and helps the tutorial build on previous examples in a cohesive way.