5.1.5. php日期相关功能说明¶

修改时区:

//修改php.ini文件
date.timezone =Asia/Shanghai

//文件修改
<?php
date_default_timezone_set('Asia/Shanghai');//'Asia/Shanghai'   亚洲/上海
date_default_timezone_set('Asia/Chongqing');//其中Asia/Chongqing'为“亚洲/重庆”
date_default_timezone_set('PRC');//其中PRC为“中华人民共和国”
ini_set('date.timezone','Etc/GMT-8');
ini_set('date.timezone','PRC');
ini_set('date.timezone','Asia/Shanghai');
ini_set('date.timezone','Asia/Chongqing');

date常见用法:

date_default_timezone_set('UTC');
// 每天的第一秒
$t1 = mktime(0, 0, 0, date("n"),date("j"),date("Y"));
$date1 = date("Y-m-d H:i:s", $t1);
// 每天的最后一秒
$t2 = mktime(23, 59, 59, date("n"),date("j"),date("Y"));
$date2 = date("Y-m-d H:i:s", $t2);

strtotime方法使用:

echo strtotime("now"), "\n";
echo strtotime("10 September 2000"), "\n";
echo strtotime("+1 day"), "\n";
echo strtotime("+1 week"), "\n";
echo strtotime("+1 week 2 days 4 hours 2 seconds"), "\n";
echo strtotime("next Thursday"), "\n";
echo strtotime("last Monday"), "\n";