PHP timestamp function (several minutes, several hours ago, several days ago, etc)

Source: Internet
Author: User
Tags echo date

1. The PHP timestamp function converts a date to a unix timestamp.

Doomsday timestamp PHP

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Echo "doomsday timestamp:". strtotime ("2012-12-21 ")


2. Convert the timestamp to the system time

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Date ('Y-m-d H: I: S', "1228348800 ");

3. The PHP timestamp function obtains the date and time of English text as follows:

For ease of comparison, date is used to convert a timestamp from a specified timestamp to a system time

(1) print the timestamp strtotime ("+ 1 day") at this time tomorrow ")

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// Current time
Echo date ("Y-m-d H: I: s", time ());
// Tomorrow at this time
Echo date ("Y-m-d H: I: s", strtotime ("+ 1 day "));


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

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// Current time
Echo date ("Y-m-d H: I: s", time ());
// Specify the time
Echo date ("Y-m-d H: I: s", strtotime ("-1 day "));


(3) print the timestamp strtotime ("+ 1 week") for the next week ")

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// Current time
Echo date ("Y-m-d H: I: s", time ());
// Next week
Echo date ("Y-m-d H: I: s", strtotime ("+ 1 week "));


(4) print the timestamp strtotime ("-1 week") of the last week ")

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// Current time
Echo date ("Y-m-d H: I: s", time ());
// Time of the last week
Echo date ("Y-m-d H: I: s", strtotime ("-1 week "));


(5) print the specified timestamp strtotime for the next week ("next Thursday ")

 

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// Current time
Echo date ("Y-m-d H: I: s", time ());
// The time of the next week
Echo date ("Y-m-d H: I: s", strtotime ("next Thursday "));


(6) print the timestamp strtotime ("last Thursday") of the specified last week ")

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// Current time
Echo date ("Y-m-d H: I: s", time ());
// Specify the time
Echo date ("Y-m-d H: I: s", strtotime ("last Thursday "));


The above PHP timestamp function example shows that strtotime can parse the date and time descriptions of any English text into Unix timestamps. We use mktime () or date () format the date and time to get the specified timestamp.

In other words, I tested such a function written by someone else. Some minor problems are: for cross-year dates, the year is not displayed. Modify as follows:

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Function mdate ($ time = NULL ){
$ Text = '';
$ Time = NULL | $ time> time ()? Time (): intval ($ time );
$ T = time ()-$ time; // time difference (seconds)
$ Y = date ('Y', $ time)-date ('Y', time (); // whether to cross-year
Switch ($ t ){
Case $ t = 0:
$ Text = 'hangzhou ';
Break;
Case $ t <60:
$ Text = $ t. 'Seconds ago '; // within one minute
Break;
Case $ t <60*60:
$ Text = floor ($ t/60). 'Minute ago '; // within one hour
Break;
Case $ t <60*60*24:
$ Text = floor ($ t/(60*60). 'Hour before '; // within a day
Break;
Case $ t <60*60*24*3:
$ Text = floor ($ time/(60*60*24) = 1? 'Yesterday '. date ('H: I', $ time): 'Day before yesterday '. date ('H: I', $ time); // yesterday and the day before yesterday
Break;
Case $ t <60*60*24*30:
$ Text = date ('m Month D day H: I ', $ time); // within a month
Break;
Case $ t <60*60x24*365 & $ y = 0:
$ Text = date ('mmonth dday', $ time); // within one year
Break;
Default:
$ Text = date ('y, m, dday', $ time); // one year ago
Break;
    }
       
Return $ text;
}

In ThinkPHP:

Put the written functions in the Common folder. The system automatically loads the data.
Put it on this common. php page. The common. php format is inherent and should not be changed.

Direct calls in the template

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{$ Vo. time | mdate}

Example 2: Simple

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Function formatDate ($ sTime ){
// STime = source time, cTime = current time, dTime = time difference
$ CTime = time ();
$ DTime = $ cTime-$ sTime;
$ DDay = intval (date ("Ymd", $ cTime)-intval (date ("Ymd", $ sTime ));
$ DYear = intval (date ("Y", $ cTime)-intval (date ("Y", $ sTime ));
If ($ dTime <60 ){
$ DTime = $ dTime. "seconds ago ";
} Elseif ($ dTime <3600 ){
$ DTime = intval ($ dTime/60). "minutes ago ";
} Elseif ($ dTime >=3600 & $ dDay = 0 ){
$ DTime = "today". date ("H: I", $ sTime );
} Elseif ($ dYear = 0 ){
$ DTime = date ("m-d H: I", $ sTime );
} Else {
$ DTime = date ("Y-m-d H: I", $ sTime );
 }
Return $ dTime;
}

 

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