<?php
function start(){
$start_time = microtime();
$start_arr = explode(" ",$start_time);
$start_time = $start_arr[1] + $start_arr[0];
return $start_time;
}
function finish($start_time){
$end_time = microtime();
$end_arr = explode(" ",$end_time);
$end_time = $end_arr[1] + $end_arr[0];
$time = $end_time - $start_time;
echo "[".round($time,6)."]<br />";
}
?>