Yii2ProfilingPanel.php

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<?php

class Yii2ProfilingPanel extends Yii2DebugPanel
{
        public function init()
        {
                $this->_logsEnabled = true;
                $this->_logsLevels = CLogger::LEVEL_PROFILE;
                parent::init();
        }

        public function getName()
        {
                return 'Profiling';
        }

        public function getSummary()
        {
                return $this->render(dirname(__FILE__) . '/../views/panels/profiling_bar.php', array(
                        'time' => number_format($this->data['time'] * 1000) . ' ms',
                        'memory' => sprintf('%.1f MB', $this->data['memory'] / 1048576),
                ));
        }

        public function getDetail()
        {
                $messages = $this->data['messages'];
                $timings = array();
                $stack = array();
                foreach ($messages as $i => $log) {
                        list($token, , $category, $timestamp) = $log;
                        $log[4] = $i;
                        if (strpos($token, 'begin:') === 0) {
                                $log[0] = $token = substr($token, 6);
                                $stack[] = $log;
                        } elseif (strpos($token, 'end:') === 0) {
                                $log[0] = $token = substr($token, 4);
                                if (($last = array_pop($stack)) !== null && $last[0] === $token) {
                                        $timings[$last[4]] = array(count($stack), $token, $category, $timestamp - $last[3]);
                                }
                        }
                }
                $now = microtime(true);
                while (($last = array_pop($stack)) !== null) {
                        $delta = $now - $last[3];
                        $timings[$last[4]] = array(count($stack), $last[0], $last[2], $delta);
                }
                ksort($timings);
                $items = array();
                foreach ($timings as $timing) {
                        $items[] = array(
                                'indent' => $timing[0],
                                'procedure' => $timing[1],
                                'category' => $timing[2],
                                'time' => sprintf('%.1f ms', $timing[3] * 1000),
                        );
                }
                return $this->render(dirname(__FILE__) . '/../views/panels/profiling.php', array(
                        'items' => $items,
                        'time' => number_format($this->data['time'] * 1000) . ' ms',
                        'memory' => sprintf('%.1f MB', $this->data['memory'] / 1048576),
                ));
        }

        public function save()
        {
                return array(
                        'memory' => memory_get_peak_usage(),
                        'time' => microtime(true) - YII_BEGIN_TIME,
                        'messages' => $this->getLogs(),
                );
        }
}