1<?php 2 3namespace libphonenumber; 4 5/** 6 * INTERNATIONAL and NATIONAL formats are consistent with the definition in ITU-T Recommendation 7 * E123. For example, the number of the Google Switzerland office will be written as 8 * "+41 44 668 1800" in INTERNATIONAL format, and as "044 668 1800" in NATIONAL format. 9 * E164 format is as per INTERNATIONAL format but with no formatting applied, e.g. 10 * "+41446681800". RFC3966 is as per INTERNATIONAL format, but with all spaces and other 11 * separating symbols replaced with a hyphen, and with any phone number extension appended with 12 * ";ext=". It also will have a prefix of "tel:" added, e.g. "tel:+41-44-668-1800". 13 * 14 * Note: If you are considering storing the number in a neutral format, you are highly advised to 15 * use the PhoneNumber class. 16 */ 17class PhoneNumberFormat 18{ 19 const E164 = 0; 20 const INTERNATIONAL = 1; 21 const NATIONAL = 2; 22 const RFC3966 = 3; 23} 24