How Can I Correctly Add Days to a Date in PHP?

Adding Days to a Date

To add a specified number of days to a given date, the correct approach in PHP differs from what was initially attempted. Instead of using strtotime with a concatenation of the form " _{number of days}_days", the appropriate method is to use the date function with the " _{number of days}_days" format.

Original Code Issue

The provided code was not achieving the desired result because:

• strtotime is designed to parse a string representation of a date and return a Unix timestamp, not modify the date.
• The date modification should be performed using the date function.

Solution

To correctly add days to a date, use the following syntax:

echo date('Y-m-d', strtotime("+30 days"));

• strtotime(" 30 days"): Creates a Unix timestamp representing 30 days from the current time.
• date('Y-m-d', ...): Formats the resulting timestamp into the desired date format ("YYYY-MM-DD").

Function Reference

• [strtotime()](http://www.php.net/manual/en/function.strtotime.php): Parses a string representation of a date and returns a Unix timestamp.
• [date()](http://www.php.net/manual/en/function.date.php): Formats a timestamp or current time according to a specified format.

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