<?php
$stampmebaby = microtime();
$chunks = explode(" ", $stampmebaby);
$microseconds = $chunks[0];
echo $microseconds;
?>
echo date(‘Y-m-d‘);
echo date(‘Y-m-d H:i:s‘);
php中日期转换函数
原文：http://www.cnblogs.com/csharphuang/p/4241510.html
