/**
*
* Validate a date
*
* @param string $date
* @param string format
* @return bool
*
*/
function validateDate( $date, $format='YYYY-MM-DD')
{
switch( $format )
{
case 'YYYY/MM/DD':
case 'YYYY-MM-DD':
list( $y, $m, $d ) = preg_split( '/[-./ ]/', $date );
break;
case 'YYYY/DD/MM':
case 'YYYY-DD-MM':
list( $y, $d, $m ) = preg_split( '/[-./ ]/', $date );
break;
case 'DD-MM-YYYY':
case 'DD/MM/YYYY':
list( $d, $m, $y ) = preg_split( '/[-./ ]/', $date );
break;
case 'MM-DD-YYYY':
case 'MM/DD/YYYY':
list( $m, $d, $y ) = preg_split( '/[-./ ]/', $date );
break;
case 'YYYYMMDD':
$y = substr( $date, 0, 4 );
$m = substr( $date, 4, 2 );
$d = substr( $date, 6, 2 );
break;
case 'YYYYDDMM':
$y = substr( $date, 0, 4 );
$d = substr( $date, 4, 2 );
$m = substr( $date, 6, 2 );
break;
default:
throw new Exception( "Invalid Date Format" );
}
return checkdate( $m, $d, $y );
}
?>
Example Usage
echo validateDate( '2007-04-21' ) ? 'good'. " " : 'bad' . " ";
echo validateDate( '2007-21-04', 'YYYY-DD-MM' ) ? 'good'. " " : 'bad' . " ";
echo validateDate( '2007-21-04', 'YYYY/DD/MM' ) ? 'good'. " " : 'bad' . " ";
echo validateDate( '21/4/2007', 'DD/MM/YYYY' ) ? 'good'. " " : 'bad' . " ";
echo validateDate( '4/21/2007', 'MM/DD/YYYY' ) ? 'good'. " " : 'bad' . " ";
echo validateDate( '20070421', 'YYYYMMDD' ) ? 'good'. " " : 'bad' . " ";
echo validateDate( '04212007', 'YYYYDDMM' ) ? 'good'. " " : 'bad' . " ";
?>
