PHP timestamp function____php

There are many kinds of functions in the PHP language, different application methods, the implementation of the function is not the same. We summarize the PHP timestamp function in this article, hoping to be a reference learning object. Discussion on PHP dynamic image creation technique PHP gets random numbers how to use PHP random number class to discuss PHP function Mt_srand using techniques to share PHP cryptographic Extensions MCrypt installation and application techniques

First, the PHP timestamp function gets the UNIX timestamp strtotime ("2009-1-22″" example) of the specified date as follows:

Echo strtotime ("2009-1-22″") Result: 1232553600

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

Second, the PHP timestamp function gets the English text date time example 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 ()) Result: 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 ()) Result: 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 ()) Result: 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 ()) Result: 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 ()) Result: 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 ()) Result: 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 PHP Timestamp function 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 date time.

Example:

<?php/*************************************************************************** * * Copyright (c) Baidu.c OM, Inc. All Rights Reserved * $Id $ * **************************************************************************//timestamp Transfer date $date _time_array = getdate (1297845628); 1311177600 1316865566 $hours = $date _time_array ["hours"]; $minutes = $date _time_array ["Minutes"]; $seconds = $date _time_array ["seconds"]; $month