How to Add Hours to a PHP Timestamp?

Adding Hours to a PHP Date

In PHP, you can easily retrieve the current date and time using the date() function. However, if you need to modify this timestamp to add a specific number of hours, you can use the strtotime() function.

Original Request:

The user requests a way to add a specified number of hours to the current timestamp, stored in the variable $now. The hours range from 24 to 800.

Solution:

To add a specific number of hours to $now, you can use strtotime() as follows:

<code class="php">$new_time = date("Y-m-d H:i:s", strtotime("+$hours hours", strtotime($now)));</code>

This will create a new $new_time variable that represents the updated timestamp with the added hours.

Alternative Syntax:

In the provided solution, we use the sprintf() function to combine the hours variable with the string. However, you can also use the following syntax:

<code class="php">$new_time = date("Y-m-d H:i:s", strtotime("+" . $hours . " hours", strtotime($now)));</code>

This is a more concise way of achieving the same result.

Additional Notes:

• The examples assume that $now is a valid date string in the "Y-m-d H:i:s" format. If it is in a different format, you will need to use strtotime() to convert it first.
• You can adjust the format string in date() to output the date and time in any desired format.

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