Inspekt\Inspekt::isPhone PHP Method

    public static function isPhone($value, $country = 'US')
    {
        if (!ctype_digit($value)) {
            return false;
        }
        switch ($country) {
            case 'US':
                if (strlen($value) != 10) {
                    return false;
                }
                $areaCode = substr($value, 0, 3);
                $areaCodes = array(201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 212, 213, 214, 215, 216, 217, 218, 219, 224, 225, 226, 228, 229, 231, 234, 239, 240, 242, 246, 248, 250, 251, 252, 253, 254, 256, 260, 262, 264, 267, 268, 269, 270, 276, 281, 284, 289, 301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 312, 313, 314, 315, 316, 317, 318, 319, 320, 321, 323, 325, 330, 334, 336, 337, 339, 340, 345, 347, 351, 352, 360, 361, 386, 401, 402, 403, 404, 405, 406, 407, 408, 409, 410, 412, 413, 414, 415, 416, 417, 418, 419, 423, 424, 425, 430, 432, 434, 435, 438, 440, 441, 443, 445, 450, 469, 470, 473, 475, 478, 479, 480, 484, 501, 502, 503, 504, 505, 506, 507, 508, 509, 510, 512, 513, 514, 515, 516, 517, 518, 519, 520, 530, 540, 541, 555, 559, 561, 562, 563, 564, 567, 570, 571, 573, 574, 580, 585, 586, 600, 601, 602, 603, 604, 605, 606, 607, 608, 609, 610, 612, 613, 614, 615, 616, 617, 618, 619, 620, 623, 626, 630, 631, 636, 641, 646, 647, 649, 650, 651, 660, 661, 662, 664, 670, 671, 678, 682, 684, 700, 701, 702, 703, 704, 705, 706, 707, 708, 709, 710, 712, 713, 714, 715, 716, 717, 718, 719, 720, 724, 727, 731, 732, 734, 740, 754, 757, 758, 760, 763, 765, 767, 769, 770, 772, 773, 774, 775, 778, 780, 781, 784, 785, 786, 787, 800, 801, 802, 803, 804, 805, 806, 807, 808, 809, 810, 812, 813, 814, 815, 816, 817, 818, 819, 822, 828, 829, 830, 831, 832, 833, 835, 843, 844, 845, 847, 848, 850, 855, 856, 857, 858, 859, 860, 863, 864, 865, 866, 867, 868, 869, 870, 876, 877, 878, 888, 900, 901, 902, 903, 904, 905, 906, 907, 908, 909, 910, 912, 913, 914, 915, 916, 917, 918, 919, 920, 925, 928, 931, 936, 937, 939, 940, 941, 947, 949, 951, 952, 954, 956, 959, 970, 971, 972, 973, 978, 979, 980, 985, 989);
                return in_array($areaCode, $areaCodes);
                break;
            default:
                throw new Exception('isPhone() does not yet support this country.');
                return false;
                break;
        }
    }

 /**
  *
  */
 public function testIsPhone()
 {
     $input = '7655559090';
     $this->assertTrue(Inspekt::isPhone($input));
 }