Php obtains the start and end time of each week and month between the specified date _ php instance

This article recommends you to use a php file to obtain the start time and end time of the week based on the specified date, and attach the instance for use, for more information, see <G id = "1"> calculate the start time and end time of each week between the two dates </G> and the start time and end time of each month.

Log formatting class Date. class. php

The Code is as follows:

<? Php
Class Datefmt {
Function _ construct (){}
/**
* Obtain the start time and end time of the week based on the specified date.
*/
Public function get_weekinfo_by_date ($ date ){
$ Idx = strftime ("% u", strtotime ($ date ));
$ Mon_idx = $ idx-1;
$ Sun_idx = $ idx-7;
Return array (
'Week _ start_day '=> strftime (' % Y-% m-% d', strtotime ($ date)-$ mon_idx x * 86400 ),
'Week _ end_day '=> strftime (' % Y-% m-% d', strtotime ($ date)-$ sun_idx * 86400 ),
);
}
/**
* Obtain the start time and End Time of the month based on the specified date.
*/
Public function get_monthinfo_by_date ($ date ){
$ Ret = array ();
$ Timestamp = strtotime ($ date );
$ Mdays = date ('T', $ timestamp );
Return array (
'Month _ start_day '=> date ('y M-1', $ timestamp ),
'Month _ end_day '=> date ('Y-m-'. $ mdays, $ timestamp)
);
}
/**
* Obtain the week between the specified date
*/
Public function get_weeks ($ sdate, $ edate ){
$ Range_arr = array ();
// Check the validity of the date
$ This-> check_date (array ($ sdate, $ edate ));
// Calculate the start time of each week
Do {
$ Weekinfo = $ this-> get_weekinfo_by_date ($ sdate );
$ End_day = $ weekinfo ['Week _ end_day '];
$ Start = $ this-> substr_date ($ weekinfo ['Week _ start_day ']);
$ End = $ this-> substr_date ($ weekinfo ['Week _ end_day ']);
$ Range = "{$ start }~ {$ End }";
$ Range_arr [] = $ range;
$ Sdate = date ('Y-m-d', strtotime ($ sdate) + 7*86400 );
} While ($ end_day <$ edate );
Return $ range_arr;
}
/**
* Obtain the months between the specified date.
*/
Public function get_months ($ sdate, $ edate ){
$ Range_arr = array ();
Do {
$ Monthinfo = $ this-> get_monthinfo_by_date ($ sdate );
$ End_day = $ monthinfo ['month _ end_day '];
$ Start = $ this-> substr_date ($ monthinfo ['month _ start_day ']);
$ End = $ this-> substr_date ($ monthinfo ['month _ end_day ']);
$ Range = "{$ start }~ {$ End }";
$ Range_arr [] = $ range;
$ Sdate = date ('Y-m-d', strtotime ($ sdate. '+ 1 month '));
} While ($ end_day <$ edate );
Return $ range_arr;
}
/**
* Truncate the month and day in the date
* @ Param string $ date
* @ Return string $ date
*/
Public function substr_date ($ date ){
If (! $ Date) return FALSE;
Return date ('m-d', strtotime ($ date ));
}
/**
* Check the validity of the date YYYY-mm-dd
* @ Param array $ date_arr
* @ Return boolean
*/
Public function check_date ($ date_arr ){
$ Invalid_date_arr = array ();
Foreach ($ date_arr as $ row ){
$ Timestamp = strtotime ($ row );
$ Standard = date ('Y-m-d', $ timestamp );
If ($ standard! = $ Row) $ invalid_date_arr [] = $ row;
}
If (! Empty ($ invalid_date_arr )){
Die ("invalid date->". print_r ($ invalid_date_arr, TRUE ));
}
}
}

Usage of class files

The Code is as follows:

<? Php
Require_once "Datefmt. class. php ";
$ Datefmt = new Datefmt ();
// Output the weeks between October 1 and October 30
Var_dump ($ datefmt-> get_weeks ('2017-11-05 ', '2017-11-29 '));
/* The result is
Array (4 ){
[0] =>
String (13) "11-03 ~ 11-09"
[1] =>
String (13) "11-10 ~ 11-16"
[2] =>
String (13) "11-17 ~ 11-23"
[3] =>
String (13) "11-24 ~ 11-30"
}
*/
// Output the values of February 1 and November 30
Var_dump ($ datefmt-> get_months ('2017-02-03 ', '2017-11-29 '));
/* The result is
Array (10 ){
[0] =>
String (13) "02-01 ~ 02-28"
[1] =>
String (13) "03-01 ~ 03-31"
[2] =>
String (13) "04-01 ~ 04-30"
[3] =>
String (13) "05-01 ~ 05-31"
[4] =>
String (13) "06-01 ~ 06-30"
[5] =>
String (13) "07-01 ~ 07-31"
[6] =>
String (13) "08-01 ~ 08-31"
[7] =>
String (13) "09-01 ~ 09-30"
[8] =>
String (13) "10-01 ~ 10-31"
[9] =>
String (13) "11-01 ~ 11-30"
}
*/