function valid_nl_phone_number in Phone 7

Same name and namespace in other branches

1. 6 phone.nl.inc \valid_nl_phone_number()

Verifies that $phonenumber is a valid ten-digit Dutch phone number with spaces and -

Regular expression adapted from Nico Lubbers's regex at RegExLib.com

Parameters

string $phonenumber:

Return value

boolean Returns boolean FALSE if the phone number is not valid.

File

include/phone.nl.inc, line 23

CCK Field for Dutch phone numbers.

Code

function valid_nl_phone_number($phonenumber) {

  //$phonenumber = trim($phonenumber);

  /*
    Accepts:
    	06-12345678
    	06 123 456 78
    	010-1234567
    	020 123 4567
    	0221-123456
    	0221 123 456
    Rejects:
    	05-12345678
    	123-4567890
    	123 456 7890
  */

  // define regular expression
  $regex = '/
  ([0]{1}[6]{1}[-\\s]+[1-9]{1}[\\s]*([0-9]{1}[\\s]*){7})				# Mobile phonenumber
  |
  ([0]{1}[1-9]{1}[0-9]{2}[-\\s]+[1-9]{1}[\\s]*([0-9]{1}[\\s]*){5})		# Phonenumber with 4 digit area code
  |
  ([0]{1}[1-9]{1}[0-9]{1}[-\\s]+[1-9]{1}[\\s]*([0-9]{1}[\\s]*){6})		# Phonenumber with 3 digit area code
  /x';

  // return true if valid, false otherwise
  return (bool) preg_match($regex, $phonenumber);
}