Using filter_var() to verify date?

Question

I\'m obviously not using filter_var() correctly. I need to check that the user has entered a valid date, in the form \"dd/mm/yyyy\".

This simply returns whatever I p

Answer 1

The better solution is posted by @baba, but the code posted doesn't work fine in certain conditions.

For example if you try to validate this date "2019-12-313";

$date = date_parse("2019-12-313");

the function returns this array:

Array
(
    [year] => 2019
    [month] => 12
    [day] => 31
    [hour] => 
    [minute] => 
    [second] => 
    [fraction] => 
    [warning_count] => 0
    [warnings] => Array
        (
        )

    [error_count] => 1
    [errors] => Array
        (
            [10] => Unexpected character
        )

    [is_localtime] => 
)

so, if you perform the command:

checkdate($date['month'], $date['day'], $date['year']);

checkdate will returns a true value because the value of $date['day'] is 31 instead of 313.

to avoid this case maybe you have to add a check to the value of $date['error_count']

the @baba example updated

$date = "2019-12-313";
$date = date_parse($date); // or date_parse_from_format("d/m/Y", $date);
if ($date['error_count'] == 0 && checkdate($date['month'], $date['day'], $date['year'])) {
    // Valid Date
}