PHP Profiling functions

functions.php

// Call this at each point of interest, passing a descriptive string
function prof_flag($str)
{

	global $prof, $prof_last, $prof_last_value;
	if(!isset($prof_last_value))
	{
		$prof_last_value = 0;
	}
	if(isset($prof_last))
	{
		if(!isset($prof[$prof_last]))
		{
			$prof[$prof_last] = 0;
		}
		$prof[$prof_last] += microtime(true) - $prof_last_value;
	}
	$prof_last = $str;
	$prof_last_value = microtime(true);
}

// Call this when you're done and want to see the results
function prof_sprint()
{
	$ret = '';
	global $prof;
	foreach($prof as $str => $value)
	{
		$ret .= '<b>' . $str . '</b><br>';
		$ret .= sprintf('&nbsp;&nbsp;&nbsp;%f<br>', $value);
	}
	return $ret;
}