How to use Strtotime function in PHP

Source: Internet
Author: User
Tags date current time echo date

In PHP, there is a function called Strtotime. Strtotime implementation: Gets the timestamp of a date, or gets a timestamp of a time. strtotime resolves a date-time description of any English text to a UNIX timestamp [converts system time to UNIX timestamp]

first, get the UNIX timestamp for the specified date

The Strtotime ("2009-1-22") example is as follows:

Echo strtotime ("2009-1-22")

Results: 1232553600

Note: Return January 22, 2009 0:0 0 seconds time stamp

two, get English text date time

Examples are as follows:

Easy to compare, using date to convert the timestamp to the system time with the specified timestamp

(1) Print tomorrow at this time the timestamp strtotime ("+1 Day")

Current time:

echo Date ("Y-m-d h:i:s", Time ())

Results: 2009-01-22 09:40:25

Specified time:

echo Date ("Y-m-d h:i:s", Strtotime ("+1 Day")

Results: 2009-01-23 09:40:25

(2) Print the timestamp strtotime ("-1 day") at this time yesterday

Current time:

echo Date ("Y-m-d h:i:s", Time ())

Results: 2009-01-22 09:40:25

Specified time:

echo Date ("Y-m-d h:i:s", Strtotime ("-1 day")

Results: 2009-01-21 09:40:25

(3) Print the timestamp strtotime ("+1 Week") at this time next week

Current time:

echo Date ("Y-m-d h:i:s", Time ())

Results: 2009-01-22 09:40:25

Specified time:

echo Date ("Y-m-d h:i:s", Strtotime ("+1 Week"))

Results: 2009-01-29 09:40:25

(4) Print the timestamp strtotime ("-1 week") at this time last week

Current time:

echo Date ("Y-m-d h:i:s", Time ())

Results: 2009-01-22 09:40:25

Specified time:

echo Date ("Y-m-d h:i:s", Strtotime ("-1 Week"))

Results: 2009-01-15 09:40:25

(5) Print a timestamp strtotime ("next Thursday") that specifies the next day of the week

Current time:

echo Date ("Y-m-d h:i:s", Time ())

Results: 2009-01-22 09:40:25

Specified time:

echo Date ("Y-m-d h:i:s", Strtotime ("next Thursday")

Results: 2009-01-29 00:00:00

(6) Print a timestamp strtotime ("last Thursday") that specifies the previous week

Current time:

echo Date ("Y-m-d h:i:s", Time ())

Results: 2009-01-22 09:40:25

Specified time:

echo Date ("Y-m-d h:i:s", Strtotime ("last Thursday")

Results: 2009-01-15 00:00:00

The above example shows that Strtotime can resolve the date-time description of any English text to a Unix timestamp, and we combine the mktime () or date () format date time to get the specified timestamp to achieve the required DateTime.

Hopefully, after the introduction of this article, you have mastered the Strtotime function usage.



Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.