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Personnummer

Swedish personal-id verification

DOCUMENTATION

All functions return (bool) false if there are some sort of error. Note that some of the functions can return 0, so you need to check the type of the return value. All functions are public static, so you don't need to instantiate this class.

Example

  include_once('pnum.class.php');
  if(Pnum::check($_POST['personal_number'])) {
     echo "The personal number is correct";
  }

function checksum($pnum)

Return: (int) the checksum number Will calculate the checksum for a personal number. The checksum is the last value of the personal number and can be used to verify that the number is entered correctly. This function does not do much format checking. Make

function check($pnum, $personal_only = true)

Return: (bool) false on incorrect number This function will check if an entered personal or company number is correct. By default it will only check for personal numbers (it will do a date check, which will fail for company numbers). Change the second parameter to false to disable the date check.

function datecheck($pnum)

Return: (bool) true if it's a correct date part Check that the date part of a personal number is in fact a date. Note that this will not work for company numbers.

function gender($pnum)

Return: (int) 1 = male, 2 = female, false = error Which gender is this personal number belonging to? Will do a check and datecheck to see that it's correctly formated.

function ispersonal($pnum)

Return (bool) true if it is a personal number This is actually an alias for check($pnum, true)

function iscompany($pnum)

Return: (bool) true if it is a company number Note that this function does not detect private companies (enskilda firmor) since their company number is the same as the owners personal number.

function company($pnum)

Return: (string) see below false = incorrect format or not a company number 'OF' = Government, county or municipality ("offentlig") 'AB' = stock company (aktiebolag) 'EK' = economic association (ekonomisk förening) 'IF' = non-profit association (ideell förening) 'HB' = General or limied partnership (handels-/kommandit-bolag) true = other, undefined company type Note that this functions does not detect private companies (enskilda firmor). See iscompany() above.

function filter($pnum)

Return: (string) filtered personal number Filters the input to the other functions so it is in a general form. It removes everything except numbers (which, of course, is wrong if you want to save the personal number, because personal numbers can have a - or a + as a delimiter, with different meanings). It also checks to see if you have provided century numbers and removes them. We discourage outside use of this function.

AUTHORS

Emil Vikstrom