<?php
class microtimer {
// Starts, Ends and Displays Page Creation Time
    function getmicrotime() {
        list($usec, $sec) = explode(" ", microtime());
        return ((float)$usec + (float)$sec);
    }
    
    function s() {
        $this->st = $this->getmicrotime();
    }
    
    function e() {
        $this->et = $this->getmicrotime();
        echo round(($this->et - $this->st), 6);
    }
}

$tm = new microtimer;

//A class is a collective function set. Stick that in a file that's included or in the file you're running
//then you use it as follows:


$tm->s();

//put all you PHP code and site code in here

$tm->e();

//and it will display the execute time in seconds to 6 decimal places. Generally i get results such as 0.000158
//just stay aware that php is extremely fast so if it's a small piece of code you'll get lots of 0s on the left
?>

    function e() {
        $this->et = $this->getmicrotime();
        echo round(($this->et - $this->st), 6); //Change this number here
    }