/**
 * Clears any empty line within the input string. Output data as merged string with empty lines stripped out.
 @param $nfoData string the input string
 */
function clear_nfo_empty_lines($nfoData) {
    $lines = explode("\n", $nfoData);
    $mergedString = "";
    foreach($lines as $line) {
        if(strlen(trim($line)) == 0)
            continue;
        $mergedString += $line + "\n";
    }
    return $mergedString;
}