Summary of all PHP timestamp formats (getting time, timestamp), php_PHP tutorial

A summary of all PHP timestamp formats (getting time, timestamp), php

There are many kinds of functions in the PHP language, with different application methods and different functions. All the same. I hope it will be helpful for newbies to learn!

1. The PHP timestamp function obtains the unix timestamp of the specified date strtotime("2009-1-22"). The example is as follows:

echo strtotime(”2009-1-22″) Result: 1232553600

Description: Return the timestamp of 0:00:00 on January 22, 2009

2. The PHP timestamp function obtains the English text date and time. The example is as follows:

For comparison, use date to convert the current timestamp and the specified timestamp into system time

(1) Print the timestamp of tomorrow 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: 2009-01-23 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

(7) Print the timestamp of zero o'clock the previous day

$ystd = strtotime('-1 day'); // The timestamp of yesterday’s moment
$ystd = date("Y-m-d", $ystd); // Yesterday's date d

$ystd = strtotime($ystd." 00:00:00"); // The timestamp of 24:00 yesterday morning

As can be seen from the above PHP timestamp function example, strtotime can parse the date and time description of any English text into a Unix timestamp. We combine the mktime() or date() formatted date and time to obtain the specified timestamp to achieve what is needed. Date time.

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