<?php

// your code goes here
date_default_timezone_set("Asia/Taipei");
//date_default_timezone_set(timezone_name_from_abbr("CST"));

$microtime = microtime(true);
echo 'microtime -> ' . $microtime  . "\n";

list($second, $numeric_after_point) = explode(".", $microtime);
echo 'second -> ' . $second  . "\n";
echo 'numeric_after_point -> ' . $numeric_after_point  . "\n";

$timestamp = date('Y-m-d H:i:s', $second);
echo  'timestamp -> ' . $timestamp  . "\n";