PHP - Exportar tabla multidimensional csv

-               COL1       COL2       COL3       COL4

FILA1          -              B              -               C

FILA2          -              -               -               D

FILA3          -              E              F               -

FILA4          A              -               -              -

for ($i=0;$i<$fin_i;$i++){

        print("<tr>");

         for($j=0;$j<$fin_j;$j++) {

                        @print("<td>".$array[$i][$j]."</td>");

         }

}

$fileLocation = "FILE.csv";

$file = fopen($fileLocation,"w");

function array_to_csv ( $arr ) {

        foreach ( $arr as &$row ) {

                $row = implode( ';', $row );

        }

        return implode( "\n" , $arr );

}

$csv_array=array_to_csv($array);

fwrite($file,$csv_array);

fclose($file);

foreach ( $arr as &$row ) {

for ($i=1;$i<10;$i++){

        for($j=1;$j<10;$j++) {

                while($fila = mysql_fetch_array($sql)){

                        $array[$i][$j]= $fila['COL'];

                }

        }

}

for ($i=0;$i<10;$i++){

         for($j=0;$j<10;$j++) {

                if ($array[$i][$j] == ""){

                        $array[$i][$j]= "-";

                }

         }

}