Check if a date value is valid in PHP
Description
The following code shows how to check if a date value is valid.
Example
<?php// ww w . ja v a 2 s.c om
echo "April 31, 2010: ".(checkdate(4, 31, 2010) ? 'Valid' : 'Invalid');
// Returns false, because April only has 30 days
echo "February 29, 2012: ".(checkdate(02, 29, 2012) ? 'Valid' : 'Invalid');
// Returns true, because 2012 is a leap year
echo "February 29, 2011: ".(checkdate(02, 29, 2011) ? 'Valid' : 'Invalid');
// Returns false, because 2011 is not a leap year
?>
The code above generates the following result.
