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HomeBackend DevelopmentPHP TutorialPHP timestamp strtotime() usage methods and techniques_PHP tutorial

There are many ways to get timestamps in PHP. The most commonly used ones are to use the time function and strtotime() function to convert dates into timestamps. Let me share with you how to use the timestamp function strtotime.
Get the specified year, month and day and convert it into a timestamp:
The pHP timestamp function gets the unix timestamp of the specified date strtotime('2012-12-7')
The example is as follows:

Copy code The code is as follows:



Description: Returns the timestamp of 0:00:00 on December 7, 2012.
Convert the current year, month and day into a timestamp: PHP timestamp function gets the unix timestamp of the current date.
The example is as follows:
Copy code The code is as follows:



Ming: Returns the current time year, month, day, hour, minute and second timestamp.
Convert timestamp to year, month and day:
Copy the code The code is as follows:

echo date("Y-m-d H:i:s",intval(time()));
?>

Example
Copy Code The code is as follows:

/*
from: http://www.jb51.net
@date: 2013- 02-22
*/
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";
?>

PHP timestamp function to get English Text date and time
is convenient for comparison. Use date to convert the current timestamp and the specified timestamp into system time
(1) Print the timestamp at this time tomorrow strtotime("+1 day")
Current time: echo date("Y-m-d H:i:s",time()) Result: 2009-01-22 09:40:25
Specify time: echo date("Y-m-d H:i:s",strtotime("+ 1 day”)) Result: 2009-01-23 09:40:25
(2) Print the timestamp of yesterday at this time strtotime(”-1 day”)
Current time: echo date(”Y-m-d H :i:s”,time()) Result: 2009-01-22 09:40:25
Specify time: echo date(”Y-m-d H:i:s”,strtotime(”-1 day”)) Result :2009-01-21 09:40:25
(3) Print the timestamp at this time next week strtotime(”+1 week”)
Current time: echo date(”Y-m-d H:i:s ”,time()) Result: 2009-01-22 09:40:25
Specify time: echo date(”Y-m-d H:i:s”,strtotime(”+1 week”)) Result: 2009-01 -29 09:40:25
(4) Print the timestamp at this time last week strtotime("-1 week")
Current time: echo date("Y-m-d H:i:s",time( )) Result: 2009-01-22 09:40:25
Specify time: echo date(”Y-m-d H:i:s”,strtotime(”-1 week”)) Result: 2009-01-15 09: 40:25
(5) Print the timestamp of the specified day of the week strtotime("next Thursday")
Current time: echo date("Y-m-d H:i:s",time()) Result: 2009- 01-22 09:40:25
Specify time: echo date(”Y-m-d H:i:s”,strtotime(”next Thursday”)) Result: 2009-01-29 00:00:00
( 6) Print the timestamp of the specified day of the week strtotime("last Thursday")
Current time: echo date("Y-m-d H:i:s",time()) Result: 2009-01-22 09:40: 25
Specify time: echo date("Y-m-d H:i:s",strtotime("last Thursday")) Result: 2009-01-15 00:00:00
The source code of the above PHP timestamp function example is available Sky, strtotime can parse the date and time description of any English text into a Unix timestamp. We combine mktime() or date() to format the date and time to obtain the specified timestamp to achieve the required date and time.
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