PHP developer's shortcut for optimizing mysql

This post is more than 18 months old. Since technology changes to rapidly, this content may be out of date (but that's not always the case). Please remember to verify any technical or programming information with the current release.

PHP developers, raise your hand if you run an explain on each MySQL statement you write and use in your apps! Anyone? Ok… 1… 2… that’s it? Yah, I tend to forget that too, but luckily PHP allows us to cheat. Thanks PHP!

The ini directive mysql.trace_mode will generate errors on unoptimized mysql queries (ie, table scans, etc) . Combined with my new error monitoring eclipse tool, this has been saving me tons of time. It won’t solve your issue or run an explain, but it will tell you if mysql is reporting an issue with your query. Of course, you’d NEVER turn this on for production. heh.

Return to All Posts