abstract string format(DateTime $dateTime, int $length)

Format a value using a configured DateTime as date/time source.

Parameters

DateTime	$dateTime	A DateTime object to be used to generate the formatted value
int	$length	The formatted value string length

Return Value

string

The formatted value

abstract string getReverseMatchingRegExp(int $length)

Returns a reverse matching regular expression of a string generated by format().

Parameters

int

$length

The length of the value to be reverse matched

Return Value

string

The reverse matching regular expression

abstract array extractDateOptions(string $matched, int $length)

Extract date options from a matched value returned by the processing of the reverse matching regular expression.

Parameters

string	$matched	The matched value
int	$length	The length of the Transformer pattern string

Return Value

array

An associative array

protected string padLeft(string $value, int $length)

Pad a string with zeros to the left.

Parameters

string	$value	The string to be padded
int	$length	The length to pad

Return Value

string

The padded string

abstract int normalizeHour(int $hour, string $marker = null)

Returns a normalized hour value suitable for the hour transformer type.

Parameters

int	$hour	The hour value
string	$marker	An optional AM/PM marker

Return Value

int	The normalized hour value