MODX REVO : Executioner snippet

Executioner.snippet.php

<?php
/*
Fork of the original executioner snippet by opengeek

Usage: 
[[!Executioner? 
   &tElementClass=`modSnippet` 
   &tEcho=`comment`
   &tElement=`getResourceField`
      &id=`27` 
      &field=`nav248` 
      &processTV=`1` 
      &default=`Sorry, no data available`
      &docid=`27` 
]]

&tElementClass= may be `modSnippet` or `modChunk`
&tEcho= may be `log` or `comment`
&msg= Use this one to put a message at the begionning or end of a group of exectioner snippets.

&msg=`Start`
[2012-02-24 17:42:15] (ERROR @ /index.php) ### Start: Homepage (2) 17:42:15 ###
&msg=`End`
[2012-02-24 17:42:15] (ERROR @ /index.php) ### End: Homepage (2) 17:42:55 ###


*/

  $id        =  $modx->resource->get('id');
  $pagetitle =  $modx->resource->get('pagetitle');

if ( !empty($msg) ) {
  
  $modx->log(modX::LOG_LEVEL_ERROR, "### ".$msg.": ".$pagetitle."(".$id.") ".date('H:i:s')." ###");
        return;
}

$output = '';
$tElementClass = !empty($tElementClass) ? $tElementClass : 'modSnippet';
$tElementId    = !empty($tElementId) ? $tElementId : $tElementClass;

$tStart = $modx->getMicroTime();
if (!empty($tElement)) {
    switch ($tElementClass) {
        case 'modChunk':
            $output = $modx->getChunk($tElement, $scriptProperties);
            break;
        case 'modSnippet':
            $output = $modx->runSnippet($tElement, $scriptProperties);
            break;
        default:
            $tElementObj = $modx->getObject($tElementClass, array('name' => $tElement));
            if ($tElementObj && $tElementObj instanceof modElement) {
                $tElementObj->setCacheable(false);
                $output = $tElementObj->process($scriptProperties);
            } else {
                $modx->log(modX::LOG_LEVEL_ERROR, "{$tElementClass}: {$tElement} is not a valid MODx Element");
            }
            break;
    }
}
$tEnd = $modx->getMicroTime();
$exec = sprintf("%2.4f s", $tEnd - $tStart);

switch($tEcho) {
  case('comment'):
	$output .= "\n"."<!-- ";
	$output .= "\n"."Executioner Snippet";
	$output .= "\n"."Document: ".$pagetitle." (ID:".$id.")";
	$output .= "\n"."{$tElementClass}: {$tElement}";
	$output .= "\n"."Execution time:".$exec;
	$output .= "\n"."-->";
        break;
  case('log'):
	$modx->log(modX::LOG_LEVEL_ERROR, "{$tElementClass}: {$tElement} executed in " . $exec );
        break;
  default:
	$modx->log(modX::LOG_LEVEL_ERROR, "{$tElementClass}: {$tElement} executed in " . $exec );
        break;
}

return $output;