PHP - valor distinto de array

$konexioa = new mysqli( "mysql.hostinger.es" , 'DB_user', 'password', 'DB_name', 3306);

$output= '';

$sql="Select * from kontadorea where Dia between'".$dia1."' and '".$dia2."' and Igerilekua='Paco Yoldi' order by Dia,Hora ";

$eragiketa=$konexioa->query($sql);

if ($row_cnt = $eragiketa->num_rows==0)

{

    echo 'Egun honetan ez dago daturik / No hay datos en la fecha seleccionada '.mysql_error();

    echo '<br>';

    echo 'Mesedez beste egun bat aukeratu / Por favor elige otro día ';

    echo '<br>';

    echo '<a href="javascript:history.go(-1);">Atzera / Atr&aacute;s</a>';

    exit;

}

else

{

$row_cnt = $eragiketa->num_rows;

if (($row_cnt = $eragiketa->num_rows) > 0)

   {

    $output .='<table>';

     while ($row = mysqli_fetch_array($eragiketa))

        {

           $output .='

                   <td>

                      <table>

                <tr><td><th>Sorosle_izena</th></td>   <td>'.$row["Sorosle_izena"].'</td></tr>

                <tr><td><th>Sorosle_abizena</th></td> <td>'.$row["Sorosle_Abizena"].'</td></tr>

                <tr><td><th>Igerilekua</th></td>      <td>'.$row["Igerilekua"].'</td></tr>

                <tr><td><th>Eguna</th></td>           <td>'.$row["Eguna"].'</td></tr>

                <tr><td><th>Ordua</th></td>           <td>'.$row["Ordua"].'</td></tr>

                <tr><td><th>Kalea 1</th></td>         <td>'.$row["Kalea 1"].'</td></tr>

                <tr><td><th>Kalea 2</th></td>         <td>'.$row["Kalea 2"].'</td></tr>

                <tr><td><th>Kalea 3</th></td>         <td>'.$row["Kalea 3"].'</td></tr>

                <tr><td><th>Kalea 4</th></td>         <td>'.$row["Kalea 4"].'</td></tr>

                <tr><td><th>Kalea 5</th></td>         <td>'.$row["kalea 5"].'</td></tr>

                <tr><td><th>Kalea 6</th></td>         <td>'.$row["Kalea 6"].'</td></tr>

                <tr><td><th>Kalea 7</th></td>         <td>'.$row["Kalea 7"].'</td></tr>

                <tr><td><th>Kalea 8</th></td>         <td>'.$row["Kalea 8"].'</td></tr>

                <tr><td><th>Txikia</th></td>          <td>'.$row["Txikia"].'</td></tr>

                <tr><td><th>Oharrak</th></td>         <td>'.$row["Oharrak"].'</td></tr>

                </table>

                </td>

           ';

          }

      $output .= '</table>';

      $filename = "$eguna1 - $eguna2 Paco Yoldi "."Igerilekuko_kontadorea.xls";

      header("Content-type: application/x-msdownload");

      header("Content-Disposition: attachment; filename=$filename");

      echo $output;

    }

 }

 $konexioa->close();