A very comprehensive tutorial on phpcms and php formatting timestamps

No matter what kind of website is built, time must be written. So how much do programmers know about PHP timestamps? Now I will share with you an article about phpcms and php formatted timestamps.

When building a website with PHPCMS V9, time tags are often used. It is a universal tag call - date and time formatting, applicable to the entire site.

1. Date and time format display:

a\Standard type: {date('Y-m-d H:i:s', $rs['inputtime'])} The output is: 2013 -01-31 13:15:10

b\Split type: {date('Y',$rs[inputtime])}year {date('m',$rs[inputtime])} The output of month {date('d',$rs[inputtime])} is: January 31, 2013

c\Extended type:

{date('Y',$ inputtime);} The 4-digit year output is: 2013 or 2014

{date('y',$inputtime);} The 2-digit year output is: 10 or 11

{date(' F',$inputtime);} The full name of the English month is output as: January to December

{date('M',$inputtime); } The English month abbreviation is output as: Jan to Dec

{date('m',$inputtime);} The digital month output with leading zeros is: 01 to 12

{date('n',$inputtime); } The digital month output is: 1 to 12

{date('d',$inputtime);} Leading zero date output is: 01 to 31

{date('j',$inputtime);} Date output is: 1 to 31

{date('l',$inputtime);} The full name of the week in English is output as: Sunday to Saturday

{date('D',$inputtime);} The abbreviation of the week in English is output as ：Mon to Sun

{date('N',$inputtime);} The format of the number week output is: 1 to 7

{date('Y-m-d H:i:s',$ rs[inputtime]+30*60)} Add a period of time after getting the article time

2. PHP timestamp function to get the unix timestamp of the specified date

<?php
echo strtotime("2017-6-27");
?>

Result: 1498514400

Return the timestamp of 0:00:00 on June 27, 2017

1. The PHP timestamp function obtains the English text date and time. Examples are as follows:

For easy comparison, use date to When the timestamp and the specified timestamp are converted 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: 2017-6-27 09:40:25

Specify time: echo date("Y-m-d H:i:s",strtotime("+1 day" )) Result: 2017-6-27 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: 2017-6-27 09:40:25

Specify time: echo date("Y-m-d H:i:s",strtotime("- 1 day”)) Result: 2017-6-27 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: 2017-6-27 09:40:25

Specified time: echo date("Y-m-d H:i:s" ,strtotime(”+1 week”)) Result: 2017-6-27 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: 2017-6-27 09:40:25

Specified time: echo date(”Y-m-d H :i:s”,strtotime(”-1 week”)) Result: 2017-6-27 09:40:25

(5) Print the timestamp of the specified day of the next week strtotime(”next Thursday” )

Current time: echo date(”Y-m-d H:i:s”,time()) Result: 2017-6-27 09:40:25

Specified time: echo date( "Y-m-d H:i:s",strtotime("next Thursday")) Result: 2017-6-27 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

Specified time: echo date("Y-m-d H:i:s",strtotime("last Thursday")) Result: 2017-6-27 00:00:00
As can be seen from the above PHP timestamp function example, strtotime can convert the date of any English text The time description is parsed into a Unix timestamp. We use mktime() or date() to format the date and time to obtain the specified timestamp and achieve the required date and time.
Example:

<?php
//时间戳转日期
$date_time_array = getdate(1297845628); //1311177600  1316865566
$hours = $date_time_array["hours"];
$minutes = $date_time_array["minutes"];
$seconds = $date_time_array["seconds"];
$month = $date_time_array["mon"];
$day = $date_time_array["mday"];
$year = $date_time_array["year"];
 echo "year:$year\nmonth:$month\nday:$day\nhour:$hours\nminutes:$minutes\nseconds:$seconds\n";
 //正常日期转时间戳
echo mktime(0, 0, 0, 9, 18, 2011) . "\n";
echo mktime(0, 0, 0, 9, 25, 2011) . "\n";
 //可以对此进行格式化
echo "time()显示年月日时分秒:" . date("Y-m-d H:i:s", time()) . "\n";
//这样连时,分秒一起显示
echo "time()只显示年月日：" . date("Y-m-d ", time()) . "\n"; //只年示年月日
 echo "时间戳格式化：" . date("Y-m-d H:i:s", 1297845628) . "\n"; //直接使用时间戳
//把正常日期转成时间戳了,这里如果有时分秒也是同理,
$year=((int)substr("2008-12-04",0,4));//取得年份
$month=((int)substr("2008-12-04",5,2));//取得月份
$day=((int)substr("2008-12-04",8,2));//取得几号
echo mktime(0,0,0,$month,$day,$year);
 ?>

Parts to note
<1>. There are two types of PHP time, one is the timestamp type (1228348800), the other is the normal date format ( 2008-12-4)

<二>, the timestamp of PHP5.1 and above will be 8 hours different from the actual time, the solution is as follows

1. The simplest way is not to use php5.1 or above - obviously this is not an advisable method! ! !

2. Modify php.ini. Open php.ini and search for date.timezone. Remove the semicolon in front of = and add Asia/Shanghai at the end. Just restart the apache server. The disadvantage is that if the program
is placed on someone else's server, you cannot modify php.ini, so what can you do? Incredible.

3. Add the time initialization statement in the program: "date_default_timezone_set("Asia/Shanghai"); "
Time zone identifier, the available values ​​in mainland China are: PRC, Asia/Chongqing , Asia/Shanghai, Asia/Urumqi (China, Chongqing, Shanghai, Urumqi in order), Etc/GMT-8, Asia/Harbin
Available in Hong Kong and Taiwan: Asia/Macao, Asia/Hong_Kong, Asia/Taipei (in order For Macau, Hong Kong, Taipei)
and Singapore: Asia/Singapore

The article has ended. I believe everyone has mastered the knowledge about phpcms and php formatted timestamps. , hope it can help everyone.

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