DatetimeHelper

Time processing library, providing format judgment, time increase and decrease, etc.

Continuation library marshung/helper, only keep and maintain DatetimeHelper

Outline

• Installation
• Usage
  • DatetimeHelper

Installation

Composer Install

# composer require marsapp/datetimehelper

Include

Include composer autoloader before use.

require __PATH__ . "vendor/autoload.php";

Usage

DatetimeHelper

Namespace use:

use marsapp\helper\datetime\DatetimeHelper;

isDate()

Determine if the date is legal

isDate($date) : Bool

Example :

if (DatetimeHelper::isDate('2019-01-15)) {
	die('Date format error');
}

dateAdd()

Date calculation - increase

dateAdd(String $date, Int $add = '1', String $unit = 'day', String $format = 'Y-m-d') : string

$unit: day, month, year, hour, minute, second

Example :

DatetimeHelper::dateAdd('2019-01-31', '1', 'day');
// result: 2019-02-01

DatetimeHelper::dateAdd('2019-01-31', '1', 'month');
// result: 2019-02-28

DatetimeHelper::dateAdd('2019-01-31 12:34:56', '13', 'month', 'Y-m-d H:i:s');
// result: 2020-02-29 12:34:56

DatetimeHelper::dateAdd('2019-01-31 12:34:56', '20', 'hour', 'Y-m-d H:00:00');
// result: 2019-02-01 09:00:00

dateReduce()

Date calculation - reduction

dateReduce(String $date, Int $reduce = '1', String $unit = 'day', String $format = 'Y-m-d') : string

$unit: day, month, year, hour, minute, second

Example :

DatetimeHelper::dateReduce('2019-01-01', '1', 'day');
// result: 2018-12-31

DatetimeHelper::dateReduce('2019-01-31', '2', 'month');
// result: 2018-11-30

DatetimeHelper::dateReduce('2020-02-29 12:34:56', '1', 'year', 'Y-m-d H:i:s');
// result: 2019-02-28 12:34:56

dateCal()

Date calculation

dateCal(String $date, Int $difference = '1', String $unit = 'day', String $format = 'Y-m-d') : string

$difference positive is add, negative is reduce
$unit: day, month, year, hour, minute, second

Example :

DatetimeHelper::dateCal('2019-01-31', '1', 'month');
// result: 2019-02-28

DatetimeHelper::dateCal('2020-02-29', '-1', 'year');
// result: 2019-02-28

dateIterator()

Get Date Iterator - Iteration Date in Days

dateIterator($startDate, $endDate)

Example :

$daterange = DateTimeHelper::dateIterator('2018-01-01', '2018-01-31');
foreach($daterange as $date){
    echo $date->format('Y-m-d') . '<br>';
}