Код выдает ошибку Notice: Undefined variable:

При заходе на сайт выдает ошибки:

Notice: Undefined variable: urlsite in on line 9
Notice: Undefined variable: urlpic in on line 10
Notice: Undefined variable: urlsite2 in on line 31
Notice: Undefined variable: urlpic2 in on line 32
Notice: Undefined variable: urlsite3 in on line 54
Notice: Undefined variable: urlpic3 in on line 55

Подскажите что надо сделать с кодом:

    <?php
$result = mysql_query("select * from tb_advban where play = '0' and vid='1' and status='0' ORDER BY RAND()");
$row    = mysql_fetch_array($result);
$number = 0;
do {
    $number++;
    if ($number > 1) {
        $i = ",";
    } else {
        $i = "";
    }
    $urlsite .= $i . '"go.php?type=1&id=' . $row['id'] . '"';
    $urlpic .= $i . '"' . $row['urlpic'] . '"';
} while ($row = mysql_fetch_array($result));
$number   = $number - 1;
$adsblock = "<?
    \$urlsite  = '{$urlsite}';
    \$urlpic = '{$urlpic}';
    \$number = '{$number}';
    ?>";
$fblock = @fopen($_SERVER['DOCUMENT_ROOT'] . "/kech/file_rotator468.php", "w+");
@fwrite($fblock, $adsblock);
@fclose($fblock);
$result2 = mysql_query("select * from tb_advban where play = '0' and vid='2' and status='0' ORDER BY RAND()");
$row2    = mysql_fetch_array($result2);
$number2 = 0;
do {
    $number2++;
    if ($number2 > 1) {
        $i2 = ",";
    } else {
        $i2 = "";
    }
    $urlsite2 .= $i2 . '"go.php?type=2&id=' . $row2['id'] . '"';
    $urlpic2 .= $i2 . '"' . $row2['urlpic'] . '"';
} while ($row2 = mysql_fetch_array($result2));
$number2   = $number2 - 1;
$adsblock2 = "<?
    \$urlsite2  = '{$urlsite2}';
    \$urlpic2 = '{$urlpic2}';
    \$number2 = '{$number2}';
    ?>";
$fblock = @fopen($_SERVER['DOCUMENT_ROOT'] . "/kech/file_rotator100.php", "w+");
@fwrite($fblock, $adsblock2);
@fclose($fblock);

$result3 = mysql_query("select * from tb_advban where play = '0' and vid='3' and status='0' ORDER BY RAND()");
$row3    = mysql_fetch_array($result3);
$number3 = 0;
do {
    $number3++;
    if ($number3 > 1) {
        $i3 = ",";
    } else {
        $i3 = "";
    }
    $urlsite3 .= $i3 . '"go.php?type=3&id=' . $row3['id'] . '"';
    $urlpic3 .= $i3 . '"' . $row3['urlpic'] . '"';
} while ($row3 = mysql_fetch_array($result3));
$number3   = $number3 - 1;
$adsblock3 = "<?
    \$urlsite3  = '{$urlsite3}';
    \$urlpic3 = '{$urlpic3}';
    \$number3 = '{$number3}';
    ?>";
$fblock = @fopen($_SERVER['DOCUMENT_ROOT'] . "/kech/file_rotator200.php", "w+");
@fwrite($fblock, $adsblock3);
@fclose($fblock);

?>