php输出时间差

亲测直接使用 strtotime("-1 day")；

显示的是今日的前一日也就是昨日。今日是根据当前的Unix时间截来断定的。

date_default_timezone_set('PRC'); //默认时区
echo "今天:",date("Y-m-d",time()),"
";
echo "今天:",date("Y-m-d",strtotime("18 june 2008")),"
";
echo "昨天:",date("Y-m-d",strtotime("-1 day")), "
";
echo "明天:",date("Y-m-d",strtotime("+1 day")), "
";
echo "一周后:",date("Y-m-d",strtotime("+1 week")), "
";
echo "一周零两天四小时两秒后:",date("Y-m-d G:H:s",strtotime("+1 week 2 days 4 hours 2 seconds")), "
";
echo "下个星期四:",date("Y-m-d",strtotime("next Thursday")), "
";
echo "上个周一:".date("Y-m-d",strtotime("last Monday"))."
";
echo "一个月前:".date("Y-m-d",strtotime("last month"))."
";
echo "一个月后:".date("Y-m-d",strtotime("+1 month"))."
";
echo "十年后:".date("Y-m-d",strtotime("+10 year"))."
";
?>

//间隔几分钟之前或之后的时间
function GetMinute($Minu,$type='l')
{
if(!strcmp($type,'b'))
$res=date("Y-m-d H:i:s",strtotime("-$Minu minute"));

else $res=0;
if(!strcmp($type,'l'))
$res=date("Y-m-d H:i:s",strtotime("+$Minu minute"));

else $res=0;
return $res;
}
//间隔几秒之前或之后的时间
function GetSec($sec,$type='l')
{
if(!strcmp($type,'b'))
$res=date("Y-m-d H:i:s",strtotime("-$sec second"));

else $res=0;
if(!strcmp($type,'l'))
$res=date("Y-m-d H:i:s",strtotime("+$sec second"));

else $res=0;
return $res;
}

以上就介绍了php输出时间差，包括了方面的内容，希望对PHP教程有兴趣的朋友有所帮助。