从另一个页面获取数据时，php中的数组到字符串转换错误

1.First Page :

<a href="EditBoq.php?id=<?php echo  $_REQUEST['numb'];  ?>&type=<?php echo $_REQUEST['wtype']; ?>"

transfer 2 variable in anchor tag.

2.Second Page :

$sql="select * from basicboq where  boqno = '".$_REQUEST['id']."' and SideType= '".$_REQUEST['type']."' ";
$req = mysql_query($sql)or die('error'.mysql_error());

when I print this boqno It's display error : array to string conversion.