nQuee-Blog

< ?php
/**
 * PASS    : XXXXXXXXXXD << XXXXXXX < XXXXXXX <<<<<<< X
 * FUNCTION: $ID01       << $ID02   < $ID03   <<<<<<< $ID04
 *
 * by Frank Burian, nQuee netappz - http://www.nquee.com
 */
function checkGermanPersonalId($ID01,$ID02,$ID03,$ID04) {
 
	$arrResult = array();
	// Prüfsumme ermitteln
	if (!function_exists('buildChecksum')) {
		function buildChecksum($intID) {
			$intMultiplier = 7;
			$intSum = 0;
			if (strlen($intID) == 11) {
				$intIDLength = 9;
			} elseif (strlen($intID) == 7) {
				$intIDLength = 6;
			} else {
				$intIDLength = strlen($intID);
			}
			for ($a=0; $a<$intIDLength; $a++) {
				$intSign = (integer) substr($intID,$a,1);
				$intTmpSum = ($intSign*$intMultiplier);
				$intSum += (integer) substr($intTmpSum,strlen($intTmpSum)-1,1);
				if ($intMultiplier == 7) {
					$intMultiplier = 3;
				} elseif ($intMultiplier == 3) {
					$intMultiplier = 1;
				} else {
					$intMultiplier = 7;
				}
			}
			return substr($intSum,strlen($intSum)-1,1);
		}
	}
	// Erste ID prüfen
	if (strlen($ID01) != 11) {
		return false;
	}
	if (buildChecksum($ID01) != substr($ID01,9,1)) {
		return false;
	}
	$arrResult['firstLocation'] = substr($ID01,0,4);
	$arrResult['origin'] = strtoupper($ID01{10});
	$arrResult['isGerman'] = ($arrResult['origin'] == 'D') ? true : false;
	// Zweite ID prüfen
	if (strlen($ID02) != 7) {
		return false;
	}
	if (buildChecksum($ID02) != $ID02{6}) {
		return false;
	}
	$arrResult['birthday']['day'] = $ID02{4}.$ID02{5};
	$arrResult['birthday']['month'] = $ID02{2}.$ID02{3};
	$arrResult['birthday']['year'] = $ID02{0}.$ID02{1};
	$arrResult['age'] = intval((mktime(0,0,0,date("m"),date("d"),date("Y")) -
						mktime(0,0,0,$arrResult['birthday']['month'],$arrResult['birthday']['day'],$arrResult['birthday']['year']))
						/ (3600 * 24 * 365));
	$arrResult['isAdult'] = ($arrResult['age'] >= 18) ? true : false;
 
	// Dritte ID prüfen
	if (strlen($ID03) != 7) {
		return false;
	}
	if (buildChecksum($ID03) != $ID03{6}) {
		return false;
	}
	$arrResult['expiration']['day'] = $ID03{4}.$ID03{5};
	$arrResult['expiration']['month'] = $ID03{2}.$ID03{3};
	$arrResult['expiration']['year'] = $ID03{0}.$ID03{1};
	// Vierte ID prüfen
	$intCompletePersonalId = substr($ID01,0,10).$ID02.$ID03;
	if (buildChecksum($intCompletePersonalId) != $ID04) {
		return false;
	}
	return $arrResult;
}
// Aufruf:
print_r(checkGermanPersonalId('6127057594D','8703189','1911149','2'));
?>