Simple time logging class in PHP.

gistfile1.php

<?php
//Exec time class
/*
Example:
Time::start('functionToTest');
functionToTest();
Time::p();
Time::t();
*/
class Time{
	private static $first = true;
	private static $firstTime;
	private static $start;
	private static $test_name;
	static function start($test_name){
		self::$start = microtime(true);
		self::$test_name = $test_name;
		if(self::$first){
			self::$first = false;
			self::$firstTime = self::$start;
		}
	}
	private static function time_format_ms($time){
		$subf = " seconds";
		$t = $time;
		$subf = " ms";
		$t *= 1000;
		return $t.' '.$subf;
	}
	
	static function p($tf=false){
		$time = microtime(true);
		if(!$tf){
			printf('<br />%s took: %s', self::$test_name, self::time_format_ms($time - self::$start));
		}else{
			printf('<br />%s took: %.16f seconds', self::$test_name, ($time - self::$start));
		}
	}
	
	static function t($tf=false){
		$time = microtime(true);
		if(!$tf){
			printf('<br />Total time: %s', self::time_format_ms(($time - self::$firstTime)));
		}else{
			printf('<br />Total time: %.16f seconds', ($time - self::$firstTime));
		}
	}
}
?>