Updating ninth digit on whole country

src/Faker/Provider/pt_BR/PhoneNumber.php

@@ -7,19 +7,7 @@ class PhoneNumber extends \Faker\Provider\PhoneNumber
 
     protected static $landlineFormats = array('2###-####', '3###-####');
 
-    protected static $cellphoneFormats = array('7###-####', '8###-####', '9###-####');
-
-    /**
-     * Extracted from http://portal.embratel.com.br/embratel/9-digito/ (point 11)
-     */
-    protected static $ninthDigitAreaCodes = array(
-        11, 12, 13, 14, 15, 16, 17, 18, 19, // aug/2013
-        21, 22, 24, 27, 28, // oct/2013
-        91, 92, 93, 94, 95, 96, 97, 98, 99, // nov/2014
-        81, 82, 83, 84, 85, 86, 87, 88, 89, // may/2015
-        31, 32, 33, 34, 35, 37, 38, 71, 73, 74, 75, 77, 79, // oct/2015
-        //41, 42, 43, 44, 45, 46, 47, 48, 49, 51, 53, 54, 55, 61, 62, 63, 64, 65, 66, 67, 68, 69 //by dec/2016
-    );
+    protected static $cellphoneFormats = array('9####-####');
 
     /**
      * Generates a 2-digit area code not composed by zeroes.
@@ -31,20 +19,14 @@ public static function areaCode()
     }
 
     /**
-     * Generates a 8/9-digit cellphone number without formatting characters.
+     * Generates a 9-digit cellphone number without formatting characters.
      * @param bool $formatted [def: true] If it should return a formatted number or not.
-     * @param int|bool $area  [def: false] A specific area code to which the number will belong.
-     *                        If a boolean is used, will add (or not) the ninth digit.
      * @return string
      */
-    public static function cellphone($formatted = true, $area = false)
+    public static function cellphone($formatted = true)
     {
         $number = static::numerify(static::randomElement(static::$cellphoneFormats));
 
-        if ($area === true || in_array($area, static::$ninthDigitAreaCodes)) {
-            $number = "9$number";
-        }
-
         if (!$formatted) {
             $number = strtr($number, array('-' => ''));
         }
@@ -53,7 +35,7 @@ public static function cellphone($formatted = true, $area = false)
     }
 
     /**
-     * Generates an 8-digit landline number without formatting characters.
+     * Generates an 9-digit landline number without formatting characters.
      * @param bool $formatted [def: true] If it should return a formatted number or not.
      * @return string
      */
@@ -94,15 +76,14 @@ protected static function anyPhoneNumber($type, $formatted = true)
     {
         $area   = static::areaCode();
         $number = ($type == 'cellphone')?
-            static::cellphone($formatted, in_array($area, static::$ninthDigitAreaCodes)) :
+            static::cellphone($formatted) :
             static::landline($formatted);
 
         return $formatted? "($area) $number" : $area.$number;
     }
 
     /**
-     * Concatenates {@link areaCode} and {@link cellphone} into a national cellphone number. The ninth digit is
-     * derived from the area code.
+     * Concatenates {@link areaCode} and {@link cellphone} into a national cellphone number.
      * @param bool $formatted [def: true] If it should return a formatted number or not.
      * @return string
      */