Question

I use preg_replace in my Bbcode parse function. I have an array of simple search strings using regex and an array of simple replace strings. (About 15 lengthy strings each.)

This function is being used very frequently. Could this be the cause of my recent 502s?

I’ve made a few changes and this is one of them. I’m trying to locate the problem.

Thanks.

Answer 1

I would recommend profiling your application with xdebug. It’s a free extension to php which will show you exactly which functions/portions of code are causing the slow execution.

However, test it on a local server, because xdebug is very heavy and will slow down your application if used on a production server.

You can examine xDebug’s output files with Webgrind – http://code.google.com/p/webgrind/

And to answer your question exactly – I don’t believe preg_replace will cause your script to become this heavy.