How Can I Determine the Final SQL Query in PHP with PDO After Parameter Substitution?

Determining the Final SQL Parametrized Query in PHP with PDO

For parametrized queries in PHP with PDO when accessing a MySQL database, obtaining the final SQL query after token substitution can be challenging. The PHP environment does not retain the complete query because it sends the query with tokens separately from the parameters to the database.

Answer 1:

As Ben James indicated, extracting the final query on the PHP side is not feasible. The server-side is where this query exists. Even user-defined functions for token substitution may not precisely replicate the SQL process due to nuances in token handling.

Answer 2:

A workaround suggested by Kailash Badu entails logging all SQL queries to observe actual database execution. To do this in MySQL, update the my.cnf (my.ini for Windows users) file by adding the line:

log=[REPLACE_BY_PATH]/[REPLACE_BY_FILE_NAME]

Caution:

Do not use this approach in production environments as it can impact performance and security.

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