Profiling with XDebug
Besides interactive debugging, IntelliJ IDEA integration with XDebug
also supports profiling.
IntelliJ IDEA provides visual representation of profiling data generated by XDebug. You can select several snapshots at a time and collect the aggregated profiling information.
Before profiling with XDebug, download, install and configure the components of the PHP development environment. Normally, these are a PHP engine, a web server, and the XDebug tool.