Sometimes, we want to correctly determine if a date string is a valid date in that format in PHP.
In this article, we’ll look at how to correctly determine if a date string is a valid date in that format in PHP.
How to correctly determine if a date string is a valid date in that format in PHP?
To correctly determine if a date string is a valid date in that format in PHP, wwe can check if we can format the string into a date.
For instance, we write
function validateDate($date, $format = "Y-m-d")
{
$d = DateTime::createFromFormat($format, $date);
return $d && $d->format($format) === $date;
}
var_dump(validateDate("2022-12-01"));
to define the validateDate function.
In it, we call DateTime::createFromFormat with $format and $date to create the$d date time format object.
Then we call $d->format($format) to return the formatted version of $d in the $format format and check that it’s the same as $date.
Conclusion
To correctly determine if a date string is a valid date in that format in PHP, wwe can check if we can format the string into a date.
