For this, you can use the strtotime() method.
The syntax is as follows −
$anyVariableName= strtotime('anyDateValue + X minute');You can put the integer value in place of X.
Example
The PHP code is as follows
<!DOCTYPE html>
<html>
<body>
<?php
$addingFiveMinutes= strtotime('2020-10-30 10:10:20 + 5 minute');
echo date('Y-m-d H:i:s', $addingFiveMinutes);
?>
</body>
</html>Output
This will produce the following output
2020-10-30 10:15:20