   #PHP Manual Date and Time functions Date and Time functions date

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                                   checkdate

   (PHP 3, PHP 4 )
   checkdate -- Validate a Gregorian date

Description

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

   Returns TRUE if the date given is valid; otherwise returns FALSE.
   Checks the validity of the date formed by the arguments. A date is
   considered valid if:

     * year is between 1 and 32767 inclusive
     * month is between 1 and 12 inclusive
     * Day is within the allowed number of days for the given month. Leap
       years are taken into consideration.

   See also mktime() and strtotime().
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