How can I get the timestamp of 12 o'clock of today, yesterday and the day before yesterday by using strtotime() function in php?
12 o'clock is a variable and would be changed by user.
- Depends on how you store the 12 o'clock (hours, minutes, seconds?). In general, did you have a look at the functions listed in (php.net/manual/en/book.datetime.php)? What did you try so far?Martin Hennings– Martin Hennings2011-01-24 09:24:59 +00:00Commented Jan 24, 2011 at 9:24
- 1definite duplicate of getting timestamp in php - You already asked that yesterday. The only difference is the arguments you pass to these functions. You can find the possible relative formats in the PHP ManualGordon– Gordon2011-01-24 09:26:05 +00:00Commented Jan 24, 2011 at 9:26
- @Gordon: i am sorry.i am really stupid today.i wanted to delete it but it has some answer now and i can't delete it.hd.– hd.2011-01-24 09:40:56 +00:00Commented Jan 24, 2011 at 9:40
Add a comment |
10 Answers
$hour = 12; $today = strtotime($hour . ':00:00'); $yesterday = strtotime('-1 day', $today); $dayBeforeYesterday = strtotime('-1 day', $yesterday); 
4 Comments
Hannes
+1 and i know its nitpicking but I would prefer
$today = strtotime($hour . ":00:00");
deceze
@Hannes Then I'd prefer
$hour . ':00:00'. If you don't need variable interpolation, use single quotes. :o)
Pavel Hasala
strtotime(): It is not safe to rely on the system's timezone settings. You are required to use the date.timezone setting or the date_default_timezone_set() function
Altimus Prime
strtotime('yesterday') seems to work on my system.strtotime supports a number of interesting modifiers that can be used:
$hour = 12; $today = strtotime("today $hour:00"); $yesterday = strtotime("yesterday $hour:00"); $dayBeforeYesterday = strtotime("yesterday -1 day $hour:00"); echo date("Y-m-d H:i:s\n", $today); echo date("Y-m-d H:i:s\n", $yesterday); echo date("Y-m-d H:i:s\n", $dayBeforeYesterday); It works as predicted:
2011-01-24 12:00:00 2011-01-23 12:00:00 2011-01-22 12:00:00 
Comments
OO Equivalent
$iHour = 12; $oToday = new DateTime(); $oToday->setTime($iHour, 0); $oYesterday = clone $oToday; $oYesterday->modify('-1 day'); $oDayBefore = clone $oYesterday; $oDayBefore->modify('-1 day'); $iToday = $oToday->getTimestamp(); $iYesterday = $oYesterday->getTimestamp(); $iDayBefore = $oDayBefore->getTimestamp(); echo "Today: $iToday\n"; echo "Yesterday: $iYesterday\n"; echo "Day Before: $iDayBefore\n"; 
Comments
to get start of day yesterday
$oDate = new DateTime(); $oDate->modify('-1 day'); echo $oDate->format('Y-m-d 00:00:00'); result
2014-11-05 00:00:00 
Comments
You can easily find out any date using DateTime object, It is so flexible
$yesterday = new DateTime('yesterday'); echo $yesterday->format('Y-m-d'); $firstModayOfApril = new DateTime('first monday of april'); echo $firstModayOfApril->format('Y-m-d'); $nextMonday = new DateTime('next monday'); echo $nextMonday->format('Y-m-d'); 
1 Comment
Vasilii Suricov
$days = 7; (new DateTime("now -{$days} days"))->format('c');All the answers here are too long and bloated, everyone loves one-lines ;)
$yesterday = Date('Y-m-d', strtotime('-1 day')); (Or if you are American you can randomize the date unit order to m/d/y (or whatever you use) and use Cups, galloons, feet and horses as units...)
Comments
As of PHP 7 you can write something like this:
$today = new \DateTime(); $yesterday = (clone $today)->modify('-1 day'); $dayBefore = (clone $yesterday)->modify('-1 day'); // Then call ->format('Y-m-d 00:00:00'); on each objects 
Comments
you can also use new DateTime("now") for today new DateTime("1 day ago") for yesterday or all can be parse by strtotime php function.
Then format as you want.
Comments
$timeStamp = time(); // $timeStamp = time() - 86400; if (date('d.m.Y', $timeStamp) == date('d.m.Y')) { echo 'Today'; } elseif (date('d.m.Y', $time) == date('d.m.Y', strtotime('-1 day'))) { echo 'Yesterday'; } 
Comments
Get timestamp of today
$iTimestamp = new \DateTime()->getTimestamp(); Get timestamp of yesterday
$iTimestamp = new \DateTime("1 day ago")->getTimestamp(); 