Passing variable to static function - php

Question

I have some PHP that pulls all staff records in the DB.
I now want to add a clause, so it can SELECT * WHERE companyId = x.
Im using GET to retrieve the companyId to be used.
My question is, how can I pass $companyClause to the static function?
function viewStaffInCompany(){
$results = array();
$companyClause = $_GET["companyClause"];
echo $companyClause . "<br><hr>";
$data = Staff::getCompanyStaffList();
$results['staff'] = $data['results'];
$results['totalRows'] = $data['totalRows'];
require( "templates/viewStaff.php" );
};
and
getCompanyStaffList();
public static function getCompanyStaffList( $numRows=1000000, $order="id ASC", $companyClause) {
$conn = new PDO( DB_DSN, DB_USERNAME, DB_PASSWORD );
$sql = "SELECT SQL_CALC_FOUND_ROWS * FROM Staff WHERE $companyClause ORDER BY " . $order . " LIMIT :numRows";
$st = $conn->prepare( $sql );
$st->bindValue( ":numRows", $numRows, PDO::PARAM_INT );
$st->execute();
$list = array();
while ( $row = $st->fetch() ) {
$users = new Staff( $row );
$list[] = $users;
}
// Now get the total number of staff that matched the criteria
$sql = "SELECT FOUND_ROWS() AS totalRows";
$totalRows = $conn->query( $sql )->fetch();
$conn = null;
return ( array ( "results" => $list, "totalRows" => $totalRows[0] ) );
}

Answer 1

Just as a parameter.
Staff::getCompanyStaffList(1000000, "id ASC", $companyClause);
But I would refactore this parameter list, because $companyClause is required, so, you will need to pass the first 2 params always, what has default values, if not given.
So it should be:
public static function getCompanyStaffList($companyClause, $numRows=1000000, $order="id ASC") {