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PHP处理日期和时间(php入门者教程)

Jun 13, 2016 am 10:03 AM
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本教程主是讲三几点如下 获取格式化的日期和时间。 处理UNIX时间戳。 获取日期和时间的信息。 日期的计算。 验证日期的有效性。

php教程处理日期和时间(php入门者教程)
/*
本教程主是讲三几点如下

获取格式化的日期和时间。
处理unix时间戳。
获取日期和时间的信息。
日期的计算。
验证日期的有效性。
*/
//获取格式化的日期和时间

echo "格式化当前时间
";
echo date('y-m-j');
echo "
";
echo "
";

echo "今天是一年中的第".date('z')."天";
echo "
";
echo "
";

echo date('m 网页特效,y l');
echo "
";
echo "
";

echo "程序执行时间:".date('h:i:s');

//处理unix时间戳。

echo "时间戳".mktime(0,0,0,12,31,2007)."对应的日期是:";
echo "
";

echo date("m-d-y", mktime(0,0,0,12,31,2007));
echo "


";
echo "
";

$day = 1;
echo "时间戳".mktime(0,0,0,7,$day+38,2008)."对应的日期是:
";
echo date("y-m-d", mktime(0,0,0,7,$day+38,2008));
echo "


";

//获取日期和时间的信息。

$time = mktime(20,0,0,8,8,2008);

echo "日期:".date("y-m-d h:i:s",$time)."";
echo "
";

echo "

";<br>
echo "该日期相关信息如下:";<br>
echo "<br>";
<p>$date = getdate($time);<br>
print_r($date);</p>

//日期的计算。

$day = 1;
$month = 10;
$year = 1949;

$national_unix = mktime(0,0,0,$month,$day,$year);
$now_unix = time();
$national_time = $now_unix - $national_unix;

$national_day_year = floor($national_time/(365*24*60*60));
$national_day_day = floor($national_time/(24*60*60));

echo "www.bKjia.c0m 2008已经 ".$national_day_year." 年";
echo "


";

echo "2008已经 ".$national_day_day." 天"

//验证日期的有效性。

if(checkdate(9,28,1980))
{
    echo "7,22,1978 : "."这是一个正确的日期格式";
}
else
{
    echo "这不是一个正确的日期格式";
}

echo "
";
echo "


";
echo "
";

if(checkdate(9,99,1999))
{
    echo "这是一个正确的日期格式";
}
else
{
    echo "9,99,1999 : "."这不是一个正确的日期格式";
}

/*
上在这篇教程主要是讲了关于php日期时间的基本教程哦,对php初学者很有用的。
*/
?>

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