<?php
// From https://www.mediawiki.org/wiki/Excimer
// Inject with `auto_prepend_file` in php.ini

if (extension_loaded("excimer")) {
	static $prof; // Keep object until the end of the request
	$prof = new ExcimerProfiler();
	$prof->setEventType(EXCIMER_REAL);
	$prof->setPeriod(0.2); // every N seconds
	$prof->setMaxDepth(250);

	$prof->setFlushCallback(function ($log) {
		file_put_contents('/tmp/profles-ramfs/excimer-traces.log', $log->formatCollapsed(), FILE_APPEND | LOCK_EX);
	}, 1);
	$prof->start();
} else {
	error_log("Profiler code injected, but no excimer extension installed");
}