PHP Functions Essential Reference

checkdate

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

month	Number of month
day	Number of day
year	Number of year

Checks a date for numeric validity.

Returns:

TRUE on success; FALSE on failure

Description:

Checks whether the given arguments form a valid date. The function allows for months of differing lengths and for leap years. A useful function for checking and validating form input in which a date is required. The allowed range for the year values is 0 to 32767 (inclusive).

Note that you can use mktime() to correct out-of-range dates, if appropriate.

Version:

PHP 3, PHP 4

See also:

getdate() 
mkdate() 
date() 
mktime() 

Example:

Check a date for validity

/* Expected output: * * Incorrect date; perhaps you meant March 1, 2001? */ $month ...