PHP: I can only use this function once (using it in a while loop)

Question

I got an answer on an older question which is almost working.

I have a function,

function vraagOp($table,$where)
{
    static $rVraagOp;
    if(!$rVraagOp){
        $qVraagOp = "SELECT * FROM $table WHERE $where";
        $rVraagOp = mysql_query( $qVraagOp );
    }
    return mysql_fetch_assoc( $rVraagOp );
}

that I want to use like this

while (vraagOp("testtable","testtype = test")) 
{
   echo "testing <br>";
}

The function works fine, however, I can only use it one time per page. The second time I call it it doesn't do anything. No error either, it's just like the function never happend.

What do I have to change in order to make it work multiple times and still work in the while loop?

Answer 1

Use something like this:

function vraagOp($table,$where)
{
    static $rVraagOp = null;
    if(!isset($rVraagOp)){
        $qVraagOp = "SELECT * FROM $table WHERE $where";
        $rVraagOp = mysql_query( $qVraagOp );
    }
    $ret = mysql_fetch_assoc( $rVraagOp );
    if(!$ret) $rVraagOp = null;
    return $ret;
}

It's ugly, but if you want like that...