/** * Checks if the given date is a real date or datepart. * Returns false if a expected datepart is missing or a datepart exceeds its possible border. * But the check will only be done for the expected dateparts which are given by format. * If no format is given the standard dateformat for the actual locale is used. * f.e. 30.February.2007 will return false if format is 'dd.MMMM.YYYY' * * @param string $date Date to parse for correctness * @param string $format (Optional) Format for parsing the date string * @param string|Zend_Locale $locale (Optional) Locale for parsing date parts * @return boolean True when all date parts are correct */ public static function isDate($date, $format = null, $locale = null) { if (!is_string($date) and !is_numeric($date) and !$date instanceof Zend_Date) { return false; } if ($format !== null and Zend_Locale::isLocale($format, null, false)) { $locale = $format; $format = null; } if (empty($locale)) { require_once 'Zend/Registry.php'; if (Zend_Registry::isRegistered('Zend_Locale') === true) { $locale = Zend_Registry::get('Zend_Locale'); } } if (!Zend_Locale::isLocale($locale, true, false)) { if (!Zend_Locale::isLocale($locale, false, false)) { require_once 'Zend/Date/Exception.php'; throw new Zend_Date_Exception("Given locale ({$locale}) does not exist", (string) $locale); } $locale = new Zend_Locale($locale); } $locale = (string) $locale; if ($format === null) { $format = Zend_Locale_Format::getDateFormat($locale); } else { if (self::$_options['format_type'] == 'php') { $format = Zend_Locale_Format::convertPhpToIsoFormat($format); } } try { $parsed = Zend_Locale_Format::getDate($date, array('locale' => $locale, 'date_format' => $format, 'format_type' => 'iso', 'fix_date' => false)); if (isset($parsed['year']) and (strpos(strtoupper($format), 'YY') !== false and strpos(strtoupper($format), 'YYYY') === false)) { $parsed['year'] = self::getFullYear($parsed['year']); } } catch (Zend_Locale_Exception $e) { // Date can not be parsed return false; } if ((strpos($format, 'Y') !== false or strpos($format, 'y') !== false) and !isset($parsed['year'])) { // Year expected but not found return false; } if (strpos($format, 'M') !== false and !isset($parsed['month'])) { // Month expected but not found return false; } if (strpos($format, 'd') !== false and !isset($parsed['day'])) { // Day expected but not found return false; } if ((strpos($format, 'H') !== false or strpos($format, 'h') !== false) and !isset($parsed['hour'])) { // Hour expected but not found return false; } if (strpos($format, 'm') !== false and !isset($parsed['minute'])) { // Minute expected but not found return false; } if (strpos($format, 's') !== false and !isset($parsed['second'])) { // Second expected but not found return false; } // Set not given dateparts if (isset($parsed['hour']) === false) { $parsed['hour'] = 0; } if (isset($parsed['minute']) === false) { $parsed['minute'] = 0; } if (isset($parsed['second']) === false) { $parsed['second'] = 0; } if (isset($parsed['month']) === false) { $parsed['month'] = 1; } if (isset($parsed['day']) === false) { $parsed['day'] = 1; } if (isset($parsed['year']) === false) { $parsed['year'] = 1970; } $date = new self($parsed, null, $locale); $timestamp = $date->mktime($parsed['hour'], $parsed['minute'], $parsed['second'], $parsed['month'], $parsed['day'], $parsed['year']); if ($parsed['year'] != $date->date('Y', $timestamp)) { // Given year differs from parsed year return false; } if ($parsed['month'] != $date->date('n', $timestamp)) { // Given month differs from parsed month return false; } if ($parsed['day'] != $date->date('j', $timestamp)) { // Given day differs from parsed day return false; } if ($parsed['hour'] != $date->date('G', $timestamp)) { // Given hour differs from parsed hour return false; } if ($parsed['minute'] != $date->date('i', $timestamp)) { // Given minute differs from parsed minute return false; } if ($parsed['second'] != $date->date('s', $timestamp)) { // Given second differs from parsed second return false; } return true; }
/** * Checks if the given date is a real date or datepart. * Returns false if a expected datepart is missing or a datepart exceeds its possible border. * But the check will only be done for the expected dateparts which are given by format. * If no format is given the standard dateformat for the actual locale is used. * f.e. 30.February.2007 will return false if format is 'dd.MMMM.YYYY' * * @param string|array|Zend_Date $date Date to parse for correctness * @param string $format (Optional) Format for parsing the date string * @param string|Zend_Locale $locale (Optional) Locale for parsing date parts * @return boolean True when all date parts are correct */ public static function isDate($date, $format = null, $locale = null) { if (!is_string($date) && !is_numeric($date) && !$date instanceof Zend_Date && !is_array($date)) { return false; } if ($format !== null && $format != 'ee' && $format != 'ss' && $format != 'GG' && $format != 'MM' && $format != 'EE' && $format != 'TT' && Zend_Locale::isLocale($format, null, false)) { $locale = $format; $format = null; } $locale = Zend_Locale::findLocale($locale); if ($format === null) { $format = Zend_Locale_Format::getDateFormat($locale); } else { if (self::$_options['format_type'] == 'php' && !defined($format)) { $format = Zend_Locale_Format::convertPhpToIsoFormat($format); } } $format = self::_getLocalizedToken($format, $locale); if (!is_array($date)) { try { $parsed = Zend_Locale_Format::getDate($date, array('locale' => $locale, 'date_format' => $format, 'format_type' => 'iso', 'fix_date' => false)); } catch (Zend_Locale_Exception $e) { // Date can not be parsed return false; } } else { $parsed = $date; } if ((strpos($format, 'Y') !== false or strpos($format, 'y') !== false) and !isset($parsed['year'])) { // Year expected but not found return false; } if (strpos($format, 'M') !== false and !isset($parsed['month'])) { // Month expected but not found return false; } if (strpos($format, 'd') !== false and !isset($parsed['day'])) { // Day expected but not found return false; } if ((strpos($format, 'H') !== false or strpos($format, 'h') !== false) and !isset($parsed['hour'])) { // Hour expected but not found return false; } if (strpos($format, 'm') !== false and !isset($parsed['minute'])) { // Minute expected but not found return false; } if (strpos($format, 's') !== false and !isset($parsed['second'])) { // Second expected but not found return false; } // Set not given dateparts if (isset($parsed['hour']) === false) { $parsed['hour'] = 12; } if (isset($parsed['minute']) === false) { $parsed['minute'] = 0; } if (isset($parsed['second']) === false) { $parsed['second'] = 0; } if (isset($parsed['month']) === false) { $parsed['month'] = 1; } if (isset($parsed['day']) === false) { $parsed['day'] = 1; } if (isset($parsed['year']) === false) { $parsed['year'] = 1970; } if (self::isYearLeapYear($parsed['year'])) { $parsed['year'] = 1972; } else { $parsed['year'] = 1971; } $date = new self($parsed, null, $locale); $timestamp = $date->mktime($parsed['hour'], $parsed['minute'], $parsed['second'], $parsed['month'], $parsed['day'], $parsed['year']); if ($parsed['year'] != $date->date('Y', $timestamp)) { // Given year differs from parsed year return false; } if ($parsed['month'] != $date->date('n', $timestamp)) { // Given month differs from parsed month return false; } if ($parsed['day'] != $date->date('j', $timestamp)) { // Given day differs from parsed day return false; } if ($parsed['hour'] != $date->date('G', $timestamp)) { // Given hour differs from parsed hour return false; } if ($parsed['minute'] != $date->date('i', $timestamp)) { // Given minute differs from parsed minute return false; } if ($parsed['second'] != $date->date('s', $timestamp)) { // Given second differs from parsed second return false; } return true; }
/** * Checks if the given date is a real date or datepart. * Returns false is a expected datepart is missing or a datepart exceeds its possible border. * But the check will only be done for the expected dateparts which are given by format. * If no format is given the standard dateformat for the actual locale is used. * f.e. 30.February.2007 will return false if format is 'dd.MMMM.YYYY' * * @param string $date Date to parse for correctness * @param string $format OPTIONAL Format for parsing the date string * @param string|Zend_Locale $locale OPTIONAL Locale for parsing date parts * @return boolean True when all date parts are correct */ public static function isDate($date, $format = null, $locale = null) { if (Zend_Locale::isLocale($format)) { $locale = $format; $format = null; } if ($locale === null) { $locale = new Zend_Locale(); $locale = $locale->toString(); } if ($format === null) { $format = Zend_Locale_Format::getDateFormat($locale); } else { if (self::$_Options['format_type'] == 'php') { $format = Zend_Locale_Format::convertPhpToIsoFormat($format); } } try { $parsed = Zend_Locale_Format::getDate($date, array('locale' => $locale, 'date_format' => $format, 'format_type' => 'iso', 'fix_date' => false)); } catch (Zend_Locale_Exception $e) { // date can not be parsed return false; } if ((strpos($format, 'Y') !== false or strpos($format, 'y') !== false) and !isset($parsed['year'])) { // year expected but not found return false; } if (strpos($format, 'M') !== false and !isset($parsed['month'])) { // month expected but not found return false; } if (strpos($format, 'd') !== false and !isset($parsed['day'])) { // day expected but not found return false; } if ((strpos($format, 'H') !== false or strpos($format, 'h') !== false) and !isset($parsed['hour'])) { // hour expected but not found return false; } if (strpos($format, 'm') !== false and !isset($parsed['minute'])) { // minute expected but not found return false; } if (strpos($format, 's') !== false and !isset($parsed['second'])) { // second expected but not found return false; } // set not given dateparts if (!isset($parsed['hour'])) { $parsed['hour'] = 0; } if (!isset($parsed['minute'])) { $parsed['minute'] = 0; } if (!isset($parsed['second'])) { $parsed['second'] = 0; } if (!isset($parsed['month'])) { $parsed['month'] = 1; } if (!isset($parsed['day'])) { $parsed['day'] = 1; } if (!isset($parsed['year'])) { $parsed['year'] = 1970; } $date = new self($locale); $timestamp = $date->mktime($parsed['hour'], $parsed['minute'], $parsed['second'], $parsed['month'], $parsed['day'], $parsed['year']); if ($parsed['year'] != $date->date('Y', $timestamp)) { // given year differs from parsed year return false; } if ($parsed['month'] != $date->date('n', $timestamp)) { // given month differs from parsed month return false; } if ($parsed['day'] != $date->date('j', $timestamp)) { // given day differs from parsed day return false; } if ($parsed['hour'] != $date->date('G', $timestamp)) { // given hour differs from parsed hour return false; } if ($parsed['minute'] != $date->date('i', $timestamp)) { // given minute differs from parsed minute return false; } if ($parsed['second'] != $date->date('s', $timestamp)) { // given second differs from parsed second return false; } return true; }