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PHP Date Interval: Perform calculations with date intervals

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Version License PHP version Categories
date-frame 1.1MIT/X Consortium ...5.3PHP 5, Time and Date, Databases
Description Author

This class can perform calculations with date intervals.

It takes a start and a begin date and performs several types of calculations related with the interval defined by those dates.

Currently it can check if a date is within an interval, check if two intervals overlap, generate SQL BETWEEN clauses to check if an expression is within the date range, get the list of days in the interval separated by days, weeks, months, quarters or years.

  Performance   Level  
Name: David Giglio <contact>
Classes: 1 package by
Country: United States United States
Age: ???
All time rank: 4067459 in United States United States
Week rank: 97 Up6 in United States United States Up

Details

DateFrame

PHP DateFrame class to ease working with date intervals (date ranges), and ease generation of SQL BETWEEN clauses

Contructor requires start and end date in any format readable aby PHP's strtotime function

$dateframe = new DateFrame('2015-01-01', '3/31/2015');
/
 * DateFrame Object
 * (
 *   [start] => 2015-01-01 00:00:00
 *   [end] => 2015-03-31 23:59:59
 *   [days] => 90
 *   [criteria] => 
 *   [orig_start] => 2015-01-01
 *   [orig_end] => 3/31/2015
 * )
 */

Each DateFrame can then be broken into an array of shorter interval DateFrames broken down by: day, seven days, Sun-Sat weeks, n months, fiscal quarters, n years.

$by_month = $dateframe->asMonthIntervals(); 
/
 * $by_month set to array of three DateFrame objects: Jan., Feb., Mar.
 *
 * Array
 * (
 *   [0] => DateFrame Object
 *       (
 *          [start] => 2015-01-01 00:00:00
 *          [end] => 2015-01-31 23:59:59
 *          [days] => 31
 *          [orig_start] => 2015-01-01
 *          [orig_end] => 2015-01-31
 *          [interval] => 1M
 *      )
 *
 *  [1] => DateFrame Object
 *      (
 *          [start] => 2015-02-01 00:00:00
 *          [end] => 2015-02-28 23:59:59
 *          [days] => 28
 *          [orig_start] => 2015-02-01
 *          [orig_end] => 2015-02-28
 *          [interval] => 1M
 *      )
 *
 *   [2] => DateFrame Object
 *      (
 *          [start] => 2015-03-01 00:00:00
 *          [end] => 2015-03-31 23:59:59
 *          [days] => 31
 *          [orig_start] => 2015-03-01
 *          [orig_end] => 2015-03-31
 *          [interval] => 1M
 *      )
 * )
 */

Methods to check if DateFrame contains date, or DateFrame overlaps another DateFrame.

$dateframe->contains('2/1/2015'); // equals true

$dateframe2 = new DateFrame('2014-01-01', '3/31/2014');
$dateframe->overlaps($dateframe2); // equals false

Method to create SQL BETWEEN clause

$dateframe = new DateFrame('2015-01-01', '3/31/2015');
$between = $dateframe->getCriteria('completed_date');
/
 * DateFrame Object
 * (
 *   [start] => 2015-01-01 00:00:00
 *   [end] => 2015-03-31 23:59:59
 *   [days] => 90
 *   [criteria] => completeddate BETWEEN '2015-01-01 00:00:00' AND '2015-03-31 23:59:59'
 *   [orig_start] => 2015-01-01
 *   [orig_end] => 3/31/2015
 * )
 */

  Files folder image Files  
File Role Description
Plain text file DateFrame.php Class Class source
Accessible without login Plain text file DateFrame_Test.php Test Unit test script
Accessible without login Plain text file LICENSE Lic. License text
Accessible without login Plain text file README.md Doc. Documentation

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