PHPで日付時刻オブジェクトに分を追加するにはどうすればよいですか?

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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