The date_sub Function
The date_sub function allows subtracting an interval from a date. It accepts two parameters: a date object created via date_create and an interval created via date_interval_create_from_date_string.
Syntax
date_sub($date, $interval);
Example
Subtract 2 weeks from the current date:
<?php
$date = date_create('2023-12-01');
$interval = date_interval_create_from_date_string('2 weeks');
date_sub($date, $interval);
echo date_format($date, 'Y-m-d');
?>
Code execution result:
'2023-11-17'
Example
Subtract 3 months and 5 days from the specified date:
<?php
$date = date_create('2023-08-20');
$interval = date_interval_create_from_date_string('3 months + 5 days');
date_sub($date, $interval);
echo date_format($date, 'Y-m-d');
?>
Code execution result:
'2023-05-15'
See Also
-
the
date_addfunction,
which adds an interval to a date -
the
date_createfunction,
which creates a DateTime object -
the
date_difffunction,
which calculates the difference between dates
