README

Helper class to provide useful time related functions.

• License
• Author
• Requirements
• Installation
• Usage

License

This project is open source and available under the MIT License.

Author

• Bayfront Media homepage
• Bayfront Media GitHub

Requirements

• PHP ^8.0 (Tested up to 8.4)

Installation

composer require bayfrontmedia/php-time-helpers

Usage

• getReadTime
• getDateTime
• isLeapYear
• humanArray
• human
• toIso8601
• toTimezone
• isTimezone
• isFormat
• inPast
• inFuture
• isBefore
• isAfter
• stopwatch

getReadTime

Description:

Get estimated minutes necessary to read content, based on reading a given amount of words per minute (WPM).

Parameters:

• $content (string)
• $wpm = 180 (int)

Returns:

• (int)

Example:

use Bayfront\TimeHelpers\Time;

$content = 'This is a string of content.';

echo Time::getReadTime($content);

getDateTime

Description:

Returns datetime of a given timestamp, or current time (default).

Parameters:

• $timestamp = NULL (int|null)

Returns:

• (string)

Example:

use Bayfront\TimeHelpers\Time;

echo Time::getDateTime();

isLeapYear

Description:

Checks if a given year is a leap year, using current year by default.

Parameters:

• $year = NULL (int|null): Four digit year, PHP date('Y') format

Returns:

• (bool)

Example:

use Bayfront\TimeHelpers\Time;

if (Time::isLeapYear()) {
    // Do something
}

humanArray

Description:

Returns human time as an array.

NOTE: Due to discrepancies between the length of certain months and years (ie: leap year), elapsed time calculations for these units of time are approximate (30 days per month, 365 days per year).

Parameters:

• $time_start (int): Timestamp of starting time
• $time_end (int): Timestamp of ending time
• $limit = 'year' (string): Limit of time duration to calculate
• $language = NULL (array|null): Custom language to return

Valid $limit values are:

• year
• month
• week
• day
• hour
• minute
• second

Passing a $language array allows you to translate the words returned by this method. The array keys must match those of the default array, which is:

$language = [
    'year' => 'year',
    'years' => 'years',
    'month' => 'month',
    'months' => 'months',
    'week' => 'week',
    'weeks' => 'weeks',
    'day' => 'day',
    'days' => 'days',
    'hour' => 'hour',
    'hours' => 'hours',
    'minute' => 'minute',
    'minutes' => 'minutes',
    'second' => 'second',
    'seconds' => 'seconds',
    'past' => 'ago',
    'present' => 'just now',
    'future' => 'to go'
];

Returns:

• (array)

Example:

use Bayfront\TimeHelpers\Time;

$start = time();
$end = time() + 51001;

print_r(Time::humanArray($start, $end, 'minute'));

human

Description:

Returns human time as a string.

For more information, see humanArray.

Parameters:

• $time_start (int): Timestamp of starting time
• $time_end (int): Timestamp of ending time
• $limit = 'year' (string): Limit of time duration to calculate
• $language = NULL (array| null): Custom language to return

Returns:

• (string)

Example:

use Bayfront\TimeHelpers\Time;

$start = time();
$end = time() + 51001;

echo Time::human($start, $end);

toIso8601

Description:

Convert UTC datetime to ISO-8601 format.

Parameters:

• $datetime (int|string): Any valid date/time formatted string or timestamp

Returns:

• (string)

toTimezone

Description:

Convert UTC datetime to format using timezone.

See: https://www.php.net/manual/en/timezones.php

Parameters:

• $datetime (int|string): Any valid date/time formatted string or timestamp
• $timezone (string): Any valid timezone identifier
• $format = 'U' (string): Any valid date/time format

Returns:

• (string)

isTimezone

Description:

Checks if string is a valid timezone identifier.

See: https://www.php.net/manual/en/timezones.php

Parameters:

• $timezone (string)

Returns:

• (bool)

Example:

use Bayfront\TimeHelpers\Time;

if (Time::isTimezone('America/New_York')) {
    // Do something
}

isFormat

Description:

Checks if value is a given dateTime format.

See: https://www.php.net/manual/en/function.date.php

Parameters:

• $date (string)
• $format (string): Any valid date/time format
• $strict = 'true' (bool)

Returns:

• (bool)

Example:

use Bayfront\TimeHelpers\Time;

$date = '2020-07-18';

if (Time::isFormat($date, 'Y-m-d')) {
    // Do something
}

inPast

Description:

Checks if date/time is in the past.

See: https://www.php.net/manual/en/datetime.formats.php

Parameters:

• $date (string): Any valid date/time format

Returns:

• (bool)

Example:

use Bayfront\TimeHelpers\Time;

if (Time::inPast('last Tuesday')) {
    // Do something
}

inFuture

Description:

Checks if date/time is in the future.

See: https://www.php.net/manual/en/datetime.formats.php

Parameters:

• $date (string): Any valid date/time format

Returns:

• (bool)

Example:

use Bayfront\TimeHelpers\Time;

if (Time::inFuture('2050-12-31')) {
    // Do something
}

isBefore

Description:

Checks if date/time is before a given date/time.

See: https://www.php.net/manual/en/datetime.formats.php

Parameters:

• $date (string): Any valid date/time format
• $before (string): Any valid date/time format

Returns:

• (bool)

Example:

use Bayfront\TimeHelpers\Time;

if (Time::isBefore('today', '2050-12-31')) {
    // Do something
}

isAfter

Description:

Checks if date/time is after a given date/time.

See: https://www.php.net/manual/en/datetime.formats.php

Parameters:

• $date (string): Any valid date/time format
• $after (string): Any valid date/time format

Returns:

• (bool)

Example:

use Bayfront\TimeHelpers\Time;

if (Time::isAfter('today', '2050-12-31')) {
    // Do something
}

stopwatch

Description:

Return the amount of time (in seconds) the callback took to execute.

Parameters:

• $callable (callback)
• $times = 1 (int): Number of times to iterate the callback
• $decimals = 5 (int): Number of decimal places to round to

Returns:

• (float)

Example:

use Bayfront\TimeHelpers\Time;

$elapsed = Time::stopwatch(function() {

    sleep(2);

}, 2);