php时间函数汇总

date_default_timezone_set('Asia/Shanghai');

function run_time(){

list($msec,$sec) = explode(" ",microtime());

return ((float)$msec + (float)$sec);

}

$start_time = run_time();

$time = time();

echo "time(): {$time}";

$formats = array('U','r','c','l , F jS , Y , g:i A', 'H:i:s D d M y', 'm/j/y/ g:i:s a O (T)', 'Y-m-d H:i:s');

foreach($formats as $format){

echo "$format： ".date($format)."\n";

}

$getdate_array = getdate($time);

echo "getdate(): ";

print_r($getdate_array);

echo "";

echo '';

$dateArray = array(

"now", "today", "tomorrow", "yesterday",

"Thursday", "this Thursday", "last Thursday",

"+2 hours", "-1 month", "+10 minutes", "30 seconds",

"+2 years -1 month", "next week", "last month",

"last year", "2 week ago", "next Friday"

);

foreach($dateArray as $mydate){

echo "\n";

}

echo '$mydate: ".date('Y-m-d H:i:s', strtotime($mydate))."';

echo '';

setlocale(LC_TIME, "zhs");

echo strftime("Month: %B ");

echo strftime("Day: %A ");

echo '';

echo "mktime函数返回的时间戳：".mktime()."";

echo "当前的日期为：".date("Y-m-d",mktime())."";

echo "当前的时间为：".date("H:i:s",mktime());

echo '';

//time函数

echo "time函数返回的时间戳：".time().'';

echo '当前日期为：'.date('Y-m-d H:i:s')."";

echo "当前的时间为：".date("H:i:s");

echo '';

$timeNow = strtotime(date("Y-m-d H:i:s"));

$time2 = strtotime("2012-12-21 8:10:10");

$sub1 = ceil(($time2 - $timeNow)/3600);

$sub2 = ceil(($time2 - $timeNow)/86400);

echo "离世界末日还有".$sub2."天";

echo "也便是".$sub1."小时";

echo '';

echo 'microtime()函数值:'.microtime();

echo '';

echo '日期转时间戳：2011-2-27：';

echo strtotime("2011-2");

echo '';

echo '时间戳转日期：1298736000：';

echo date("Y-m-d","1298736000");

echo '';

//昨天

$day_s = mktime(0,0,0,date("m", strtotime("-1 day")), date("d",strtotime("-1 day")), date("Y",strtotime("-1 day")));

$day_e = mktime(23,59,59,date("m", strtotime("-1 day")), date("d",strtotime("-1 day")), date("Y",strtotime("-1 day")));

echo '昨天';

echo date('Y-m-d H:i:s', $day_s).'';

echo date('Y-m-d H:i:s', $day_e).'';

$year = date( 'Y' );

$month = date('m');

$day = date('d');

//本周

echo '本周';

echo date('Y-m-d H:i:s', mktime(0, 0, 0, $month, $day - date('N'), $year)).'';

echo date('Y-m-d H:i:s', mktime(23, 59, 59, $month,$day - date('N') + 6, $year)).'';

//上周

echo '上周';

echo date('Y-m-d H:i:s', mktime(0, 0, 0, $month, $day - date('N') - 7, $year)).'';

echo date('Y-m-d H:i:s', mktime(23, 59, 59, $month, $day - date('N') -1 , $year)).'';

//本月

echo '本月';

echo date("Y-m-d H:i:s", mktime(0, 0, 0, date('m'), 1, date('y'))).'';

echo date("Y-m-d H:i:s", mktime(23, 59, 59, date('m')+1, 0, date('y'))).'';

//上月

echo '上月';

echo date("Y-m-d H:i:s", mktime(0, 0, 0, date('m')-1, 1, date('y'))).'

';

echo date("Y-m-d H:i:s", mktime(23, 59, 59, date('m'), 0, date('y'))).'';

$end_time = run_time();

echo '该网页的运行时间为：';

echo ($end_time - $start_time);

echo '';

上面格局可能太乱补上几张图片：