public static function thousandSuffix($num)
{
if ($num < 999) {
return $num;
}
$x = round($num);
$x_number_format = number_format($x);
$x_array = explode(',', $x_number_format);
$x_parts = ['K', 'M', 'B', 'T'];
$x_count_parts = count($x_array) - 1;
$x_display = $x_array[0] . ((int) $x_array[1][0] !== 0 ? '.' . $x_array[1][0] : '');
$x_display .= $x_parts[$x_count_parts - 1];
return $x_display;
}