How to Add Minutes to a Date Time Object in PHP?

Adding Minutes to a Date Time in PHP: A Comprehensive Solution

Question: How can I increment a date time object in PHP by a specified number of minutes while preserving the original format?

Answer:

To effectively add minutes to a date time in PHP, we will employ a combination of the DateTime and DateInterval classes. Here's a detailed breakdown:

$minutes_to_add = 5;

$time = new DateTime('2011-11-17 05:05');
$time->add(new DateInterval('PT' . $minutes_to_add . 'M'));

$stamp = $time->format('Y-m-d H:i');

Explanation:

1. Instantiating a DateTime Object: We create a DateTime object using the 'new DateTime()' syntax. The parameter passed to it represents the initial date and time.
2. Creating a DateInterval Object: This class is used to specify the duration to be added to the date time. In our case, 'PT' stands for a period of time, followed by the number of minutes ('5' in this example) and the letter 'M' to indicate minutes.
3. Adding Duration to Date: The add() method is then used to add the specified duration to the DateTime object.
4. Formatting the Output: Finally, the format() method returns the date and time in the desired format, preserving the original 'year-month-day hour:minute' structure.

The ISO 8601 standard for duration follows a specific string format. Here, 'P{y}Y{m1}M{d}DT{h}H{m2}M{s}S' represents a duration with various components, such as years ('Y'), months ('M'), days ('D'), hours ('H'), minutes ('M'), and seconds ('S'). In our case, we utilize 'PT5M' to indicate adding 5 minutes to the date time.

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