PHP - Profiler (With Xdebug)

The profiler in Xdebug 2 outputs profiling information in the form of a cachegrind compatible file.

• PHP - (Debug|Debugger) with Xdebug in Docker

• Open the active php.ini file.
• Set the xdebug.profiler_enable directive to 1:

xdebug.profiler_enable = 1;

• To enable toggling the profiler from the browser through control over debugger cookies, set the xdebug.profiler_enable_trigger directive to 1:

xdebug.profiler_enable_trigger = 1;

• Define location for accumulating profiling snapshots by specifying the xdebug.profiler_output_dir directive.

xdebug.profiler_output_dir = "<output folder name>"

• Specify the name of the file to store snapshots in through the value of the xdebug.profiler_output_name directive.

xdebug.profiler_output_name = "cachegrind.out.%t-%s" 
; default: cachegrind.out.%p where %p is the name format specifier

The name should always be cachegrind.out with a supported format specifiers ??? Why not callgrind.what_youw_want.

Start the debugger with profiler enable. Starting The Debugger

With Firefox, you can use this plugin = Firefox the easiest xdebug

The format cachegrind can be read by kcachegrind :

• Linux: The KCacheGrind
• Windows: QCacheGrind (QCacheGrind is KCacheGrind without KDE bindings)

• Intellij > Tools | Analyze Xdebug Profiler Snapshot.

and you will see: