<?php
// 设置默认时区。PHP 5.1 之后版本可用
date_default_timezone_set('UTC');
// 输出类似: Monday
echo date("l");
// 输出类似:Monday 8th of August 2005 03:12:46 PM
echo date('l jS \of F Y h:i:s A');
// 输出:July 1, 2000 is on a Saturday
echo "July 1, 2000 is on a " . date("l", mktime(0, 0, 0, 7, 1, 2000));
/* 使用格式常量 */
// 输出类似: Mon, 15 Aug 2005 15:12:46 UTC
echo date(DATE_RFC822);
// 输出类似:2000-07-01T00:00:00+00:00
echo date(DATE_ATOM, mktime(0, 0, 0, 7, 1, 2000));
?>