<?php
$string = "This is the total 98+84+67 of the numbers 98, 84 and 67 if we add.";
$numbers = explode("+",$matches[0]);
PD9waHAKCiAgICAkc3RyaW5nID0gIlRoaXMgaXMgdGhlIHRvdGFsIDk4Kzg0KzY3IG9mIHRoZSBudW1iZXJzIDk4LCA4NCBhbmQgNjcgaWYgd2UgYWRkLiI7CiAgICBwcmVnX21hdGNoKCIvW1xkXStcK1tcZCtdKy8iLCRzdHJpbmcsJG1hdGNoZXMpOwogICAgJG51bWJlcnMgPSBleHBsb2RlKCIrIiwkbWF0Y2hlc1swXSk7CiAgICAkc3VtID0gYXJyYXlfc3VtKCRudW1iZXJzKTsKICAgIHByaW50IHByZWdfcmVwbGFjZSgiL1tcZF0rXCtbXGQrXSsvIiwkc3VtLCRzdHJpbmcpOw==