Anonymous

<?php
    $a = array( 1002, 1046, 1203, 2379, 1988, 622, 1956, 1541, 2141, 601, 366, 58, 1058, 1901, 2100, 20, 2042, 436, 990, 527, 1846, 1566, 418, 1364, 433, 1299,
1778, 2261, 137, 1695, 15, 508, 1697, 186, 486, 323, 1618, 564, 931, 292, 1232, 1354, 288, 1188, 2153, 2286, 200, 392, 976, 1305, 1166, 51, 1061, 537, 575, 1515, 1180, 2313, 675, 262, 1308, 531, 1936, 1691, 736, 535, 2219, 1394, 548, 2047, 2388, 2204, 2065, 2131, 2050, 2111, 2075, 1056, 1351, 1310, 740, 942, 951, 1377, 1282, 48, 1470, 529, 936, 2276, 2021, 212, 1854, 1827, 2110, 825, 1218, 1700, 227, 165, 25, 22, 128, 182, 101, 134, 35, 19, 185, 220, 226, 89, 195, 202, 216, 189, 138, 94, 74, 150, 201, 1, 163, 16, 131, 62, 145, 87, 85, 26, 172, 60, 140, 80, 38, 236, 86, 127, 112, 54, 203, 164, 154, 132, 194, 92, 110, 11, 209, 33, 157, 146, 152, 81, 198, 50, 109, 121, 180, 187, 205, 184, 170, 46, 177, 166, 79, );

 $b = Array( 1351, 1138, 873, 983, 1983, 1827, 1062, 325, 2173, 1670, 1232, 1674, 1577, 1333, 912, 2030, 2336, 1555, 696, 2010, 2285, 2304, 1499, 1541, 1992, 957, 2065, 1268, 1710, 2253, 2233, 1048, 2239, 963, 733, 1109, 2143, 675, 2342, 1434, 1051, 2300, 206, 9, 1153, 1210, 1787, 1441, 1692, 194, 2381, 1614, 1797, 2133, 876, 2160, 1802, 201, 197, 2042, 1567, 723, 2332, 1620, 914, 1762, 2227, 1186, 851, 498, 1454, 129, 45, 1059, 303, 124, 1954, 1774, 1371, 959, 814, 199, 136, 76, 128, 204, 50, 187, 167, 37, 69, 52, 240, 49, 3, 161, 73, 67, 57, 2, 109, 31, 186, 218, 164, 207, 53, 65, 24, 1, 30, 189, 117, 42, 106, 200, 40, 8, 112, 156, 81, 176, 147, 98, 172, 101, 46, 171, 83, 179, 84, 126, 29, 231, 169, 214, 235, 61, 213, 89, 63, 152, 36, 26, 229, 182, 10, 16, 78, 33, );


var_dump(array_intersect($a, $b));