src/classes/CCValidator.php
public function rule_date_format( $key, $value, $format = 'd/m/Y' ) 
	{
		return date( $format, strtotime( trim( $value ) ) ) == trim( $value );
	}
public function rule_date_format( $key, $value, $format = 'd/m/Y' ) 
	{
		return date( $format, strtotime( trim( $value ) ) ) == trim( $value );
	}
public function rule_date_format ( $ key , $ value , $ format = 'd/m/Y' ) { return date ( $ format , strtotime ( trim ( $ value ) ) ) == trim ( $ value ) ; }
Check if valid date format

@param string			$key
@param string 		$value
@param string			$format
@param bool
Check if valid date format