PHP gets the start and end time of each week and month between the specified date _php instance

Calculates the start and end times of each week between two dates, based on the specified two dates, and the start and end times of each month

Log Formatting class Date.class.php

Copy CodeThe code is as follows:
<?php
Class datefmt{
function __construct () {}
/**
* Gets the starting and ending times 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)-$mon _idx * 86400),
' Week_end_day ' = strftime ('%y-%m-%d ', Strtotime ($date)-$sun _idx * 86400),
);
}
/**
* Get the starting and ending times of the month based on the specified date
*/
Public Function Get_monthinfo_by_date ($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, $timestamp)
);
}
/**
* Gets each week between the specified dates
*/
Public Function Get_weeks ($sdate, $edate) {
$range _arr = Array ();
Check Date Validity
$this->check_date (Array ($sdate, $edate));
Calculate the start time for 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 $range _arr;
}
/**
* Get each month between the specified dates
*/
Public Function get_months ($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;
}
/**
* The month and day of the interception 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));
}
}
}

Use of class files

The

copy Code code is as follows:
<?php
require_once "Datefmt.class.php";
$datefmt = new Datefmt ();
Outputs
Var_dump ($datefmt->get_weeks (' 2014-11-05 ', ' 2014-11-29 ') for each week between November 1 and 30th;
//result is
Array (4) {
[0 ]=>
String (11-03 ~ 11-09 "
[1]=>
String] 11-10 ~ 11-16"
[2]=>
String (13) "11-17 ~ 11- "
[3]=>
String (11-24 ~ 11-30"
}
*/
/output February 1 and November 30
Var_dump ($datefmt->get_months (' 2014-02-03 ', ' 2014-11-29 ');
/* result is
Array (ten) {
[0]=>
String (02-01 ~ 02-28 "
[1]=>
string ()" 03-01 ~ 03-31 "
[2] =>
String (04-01 ~ 04-30 "
[3]=>
string" 05-01 ~ 05-31 "
[4]=>
String (13)" 06-01 ~ 06-3 0 "
[5]=>
String (07-01 ~ 07-31"
[6]=>
string "08-01 ~ 08-31"
[7]=>
String (13) "09 -01 ~ 09-30 "
[8]=>
String (" 10-01 ~ 10-31 "
[9]=>
string" 11-01 ~ 11-30 "
}
*/

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