checkdate

Function • Params and return types changed in PHP 8.0

Validate a Gregorian date.

PHP 5

PHP 7

Improved

PHP 8.1

PHP 8.2-8.3

PHP 8.4

PHP 8.5

PHP 8.6

checkdate(
    int $month,
    int $day,
    int $year
  ): bool

Typeint

The month is between 1 and 12 inclusive.

Typeint

The day is within the allowed number of days for the given $month. Leap $years are taken into consideration.

Typeint

The year is between 1 and 32767 inclusive.

Typebool

Returns true if the date given is valid; otherwise returns false.

Changes to the `checkdate` Function

  checkdate(
-     $month,
+     int $month,
-     $day,
+     int $day,
-     $year
+     int $year
-   )
+   ): bool