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How do you secure PHP apps against SQL injection beyond prepared statements?

Senior PHP
Quick Answer Beyond prepared statements: use a query builder or ORM that enforces parameterization. Add a WAF (Web Application Firewall). Apply least-privilege database accounts (read-only user for SELECT-only routes). Validate input types before querying. Log and monitor all database errors. Use database activity monitoring. Avoid dynamic table or column names even with prepared statements.

Answer

Use parameterized queries, avoid dynamic SQL, validate input types, and use secure ORM query builders.
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Source: SugharaIQ

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