$re = '~\w+:(?:"([^"]+)"|(\d+)(?=;|\Z)|(\d+\.\d+)|([A-Z]+\s))~';
$str = 'name:"SFATG";affil:100;aup:1;bu:FALSE name:"SF TAC 1";affil:29.3478;aup:19;bu:FALSE name:"SF TAC 2";affil:22.2222;aup:14;bu:FALSE name:"SF TAC 3";affil:44.4444;aup:0;bu:FALSE name:"SF DISP 4";affil:82.4742;aup:0;bu:FALSE
';
preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);
// Print the entire match result
var_dump($matches);
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php