/**
* Date validation, determines if the string passed is a valid date.
* keys that expect full month, day and year will validate leap years
*
* @param string $check a valid date string
* @param mixed $format Use a string or an array of the keys below. Arrays should be passed as array('dmy', 'mdy', etc)
* Keys: dmy 27-12-2006 or 27-12-06 separators can be a space, period, dash, forward slash
* mdy 12-27-2006 or 12-27-06 separators can be a space, period, dash, forward slash
* ymd 2006-12-27 or 06-12-27 separators can be a space, period, dash, forward slash
* dMy 27 December 2006 or 27 Dec 2006
* Mdy December 27, 2006 or Dec 27, 2006 comma is optional
* My December 2006 or Dec 2006
* my 12/2006 separators can be a space, period, dash, forward slash
* @param string $regex If a custom regular expression is used this is the only validation that will occur.
* @return boolean Success
* @access public
*/
function date($check, $format = 'ymd', $regex = null)
{
if (is_numeric($check)) {
return WPToolset_Field_Date_Scripts::_isTimestampInRange($check);
}
// TODO Change to use date strtotime
$valid = wptoolset_strtotime($check);
return $valid !== false;
$cake_date_formats = array('F j, Y' => 'Mdy', 'Y/m/d' => 'ymd', 'm/d/Y' => 'mdy', 'd/m/Y' => 'dmy');
$format = isset($cake_date_formats[$format]) ? $cake_date_formats[$format] : $format;
$_this =& WPToolset_Cake_Validation::getInstance();
$_this->__reset();
$_this->check = $check;
$_this->regex = $regex;
if (!is_null($_this->regex)) {
return $_this->_check();
}
$regex['dmy'] = '%^(?:(?:31(\\/|-|\\.|\\x20)(?:0?[13578]|1[02]))\\1|(?:(?:29|30)(\\/|-|\\.|\\x20)(?:0?[1,3-9]|1[0-2])\\2))(?:(?:1[6-9]|[2-9]\\d)?\\d{2})$|^(?:29(\\/|-|\\.|\\x20)0?2\\3(?:(?:(?:1[6-9]|[2-9]\\d)?(?:0[48]|[2468][048]|[13579][26])|(?:(?:16|[2468][048]|[3579][26])00))))$|^(?:0?[1-9]|1\\d|2[0-8])(\\/|-|\\.|\\x20)(?:(?:0?[1-9])|(?:1[0-2]))\\4(?:(?:1[6-9]|[2-9]\\d)?\\d{2})$%';
$regex['mdy'] = '%^(?:(?:(?:0?[13578]|1[02])(\\/|-|\\.|\\x20)31)\\1|(?:(?:0?[13-9]|1[0-2])(\\/|-|\\.|\\x20)(?:29|30)\\2))(?:(?:1[6-9]|[2-9]\\d)?\\d{2})$|^(?:0?2(\\/|-|\\.|\\x20)29\\3(?:(?:(?:1[6-9]|[2-9]\\d)?(?:0[48]|[2468][048]|[13579][26])|(?:(?:16|[2468][048]|[3579][26])00))))$|^(?:(?:0?[1-9])|(?:1[0-2]))(\\/|-|\\.|\\x20)(?:0?[1-9]|1\\d|2[0-8])\\4(?:(?:1[6-9]|[2-9]\\d)?\\d{2})$%';
$regex['ymd'] = '%^(?:(?:(?:(?:(?:1[6-9]|[2-9]\\d)?(?:0[48]|[2468][048]|[13579][26])|(?:(?:16|[2468][048]|[3579][26])00)))(\\/|-|\\.|\\x20)(?:0?2\\1(?:29)))|(?:(?:(?:1[6-9]|[2-9]\\d)?\\d{2})(\\/|-|\\.|\\x20)(?:(?:(?:0?[13578]|1[02])\\2(?:31))|(?:(?:0?[1,3-9]|1[0-2])\\2(29|30))|(?:(?:0?[1-9])|(?:1[0-2]))\\2(?:0?[1-9]|1\\d|2[0-8]))))$%';
$regex['dMy'] = '/^((31(?!\\ (Feb(ruary)?|Apr(il)?|June?|(Sep(?=\\b|t)t?|Nov)(ember)?)))|((30|29)(?!\\ Feb(ruary)?))|(29(?=\\ Feb(ruary)?\\ (((1[6-9]|[2-9]\\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00)))))|(0?[1-9])|1\\d|2[0-8])\\ (Jan(uary)?|Feb(ruary)?|Ma(r(ch)?|y)|Apr(il)?|Ju((ly?)|(ne?))|Aug(ust)?|Oct(ober)?|(Sep(?=\\b|t)t?|Nov|Dec)(ember)?)\\ ((1[6-9]|[2-9]\\d)\\d{2})$/';
$regex['Mdy'] = '/^(?:(((Jan(uary)?|Ma(r(ch)?|y)|Jul(y)?|Aug(ust)?|Oct(ober)?|Dec(ember)?)\\ 31)|((Jan(uary)?|Ma(r(ch)?|y)|Apr(il)?|Ju((ly?)|(ne?))|Aug(ust)?|Oct(ober)?|(Sept|Nov|Dec)(ember)?)\\ (0?[1-9]|([12]\\d)|30))|(Feb(ruary)?\\ (0?[1-9]|1\\d|2[0-8]|(29(?=,?\\ ((1[6-9]|[2-9]\\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00)))))))\\,?\\ ((1[6-9]|[2-9]\\d)\\d{2}))$/';
$regex['My'] = '%^(Jan(uary)?|Feb(ruary)?|Ma(r(ch)?|y)|Apr(il)?|Ju((ly?)|(ne?))|Aug(ust)?|Oct(ober)?|(Sep(?=\\b|t)t?|Nov|Dec)(ember)?)[ /]((1[6-9]|[2-9]\\d)\\d{2})$%';
$regex['my'] = '%^(((0[123456789]|10|11|12)([- /.])(([1][9][0-9][0-9])|([2][0-9][0-9][0-9]))))$%';
$format = is_array($format) ? array_values($format) : array($format);
foreach ($format as $key) {
$_this->regex = $regex[$key];
if ($_this->_check() === true) {
return true;
}
}
return false;
}
/**
* Checks if timestamp is numeric and within range.
*
* @param type $timestamp
* @return type
*/
function wpcf_fields_date_timestamp_is_valid($timestamp)
{
/*
* http://php.net/manual/en/function.strtotime.php
* The valid range of a timestamp is typically
* from Fri, 13 Dec 1901 20:45:54 UTC
* to Tue, 19 Jan 2038 03:14:07 UTC.
* (These are the dates that correspond to the minimum
* and maximum values for a 32-bit signed integer.)
* Additionally, not all platforms support negative timestamps,
* therefore your date range may be limited to no earlier than
* the Unix epoch.
* This means that e.g. dates prior to Jan 1, 1970 will not
* work on Windows, some Linux distributions,
* and a few other operating systems.
* PHP 5.1.0 and newer versions overcome this limitation though.
*/
// MIN 'Jan 1, 1970' - 0 | Fri, 13 Dec 1901 20:45:54 UTC
$_min_timestamp = fields_date_timestamp_neg_supported() ? -2147483646 : 0;
// MAX 'Tue, 19 Jan 2038 03:14:07 UTC' - 2147483647
$_max_timestamp = 2147483647;
return WPToolset_Field_Date_Scripts::_isTimestampInRange($timestamp);
//return is_numeric( $timestamp ) && $_min_timestamp <= $timestamp && $timestamp <= $_max_timestamp;
}
protected static function _isTimestampInRange($timestamp)
{
return WPToolset_Field_Date_Scripts::_isTimestampInRange($timestamp);
}