skeleton/profiler.php

<?php

fbx_plugin_register('preexec', 'profiler_start_timer');

fbx_plugin_register('prehtml', 'profiler_output');

fbx_plugin_register('predisplay', 'profiler_enter');
fbx_plugin_register('prelayout', 'profiler_enter');
fbx_plugin_register('preaction', 'profiler_enter');
fbx_plugin_register('prequery', 'profiler_enter');
fbx_plugin_register('precontrol', 'profiler_enter');

fbx_plugin_register('postdisplay', 'profiler_exit');
fbx_plugin_register('postlayout', 'profiler_exit');
fbx_plugin_register('postaction', 'profiler_exit');
fbx_plugin_register('postquery', 'profiler_exit');
fbx_plugin_register('postcontrol', 'profiler_exit');

function profiler_start_timer($item_name)
{
    global $fbx, $content;
    $fbx['profiler']['start_time'] = microtime(true);
}

function profiler_enter($item_name)
{
    global $fbx, $content;
    $fbx['profiler']['stack'][] = array('index' => $fbx['profiler']['index']++, 'item_name' => $item_name, 'start_time' => microtime(true));
}

function profiler_exit($item_name)
{
    global $fbx, $content;
    $item = array_pop($fbx['profiler']['stack']);
    $item['elapsed'] = microtime(true) - $item['start_time'];
    $item['nesting'] = count($fbx['profiler']['stack']) - 1;
    $fbx['profiler']['output'][] = $item;
}

function profiler_output($item_name)
{
    global $fbx, $content;
    if (count($fbx['profiler']['output']))
    {
        for ($i=0; $i<count($fbx['profiler']['output']); $i++)
        {
            $changed = false;
            for ($j=$i+1; $j<count($fbx['profiler']['output']); $j++)
            {
                if ($fbx['profiler']['output'][$i]['index'] > $fbx['profiler']['output'][$j]['index'])
                {
                    $changed = true;
                    $temp = $fbx['profiler']['output'][$i];
                    $fbx['profiler']['output'][$i] = $fbx['profiler']['output'][$j];
                    $fbx['profiler']['output'][$j] = $temp;
                }
            }
        }        
        for ($i=0; $i<count($fbx['profiler']['output']); $i++)
        {
            $item = $fbx['profiler']['output'][$i];
            $output[] = sprintf("%3u %1.4f", $item['index'], $item['elapsed']) . ' ' . str_repeat(' ', max($item['nesting'] * 2, 0)) . $item['item_name'];
        }
        $output[] = "----------<br>&nbsp;&nbsp;&nbsp;&nbsp;" . sprintf("%1.4f", microtime(true) - $fbx['profiler']['start_time']);
        $content['debugpanes']['profiler'] = str_replace(' ', '&nbsp;', join("<br>", $output));
    }
}