根据id表将单个数组结果发送到打印机

我正在编写一个简单的PHP脚本，该脚本将用户详细信息存储在MySQL数据库中。我可以运行一个查询，并让它返回单个记录，只要查询与姓氏匹配（预定义）。一旦我有了记录，我希望能够在每个记录旁边回显一个打印按钮，这样用户就可以单独打印每个记录。

该代码是几个代码片段的混搭，除了"打印用户数据"部分外，其他部分都运行良好。我不是PHP的新手，但我也有足够的知识来浏览脚本。以下是我迄今为止的收获。

<?php
//capture search term and remove spaces at its both ends if the is any
$searchTerm = trim($_GET['keyname']);
//check whether the name parsed is empty
if($searchTerm == "")
{
echo "Enter name you are searching for.";
exit();
}
//database connection info
$host = "localhost"; //server
$db = "users"; //database name
$user = "root"; //dabases user name
$pwd = "password1"; //password
//connecting to server and creating link to database
$link = mysqli_connect($host, $user, $pwd, $db);
//MYSQL search statement
$query = "SELECT * FROM details WHERE lastname LIKE '%$searchTerm%'";
$results = mysqli_query($link, $query);
/* check whether there were matching records in the table
by counting the number of results returned */
if(mysqli_num_rows($results) >= 1)
{
$output = "";
while($row = mysqli_fetch_array($results))
{
        echo "<tr valign=bottom>";
        echo "<td bgcolor=#ffffff background='img/dots.gif' colspan=6><img     src=img/blank.gif width=1 height=1></td>";
        echo "</tr>";
    echo "<tr valign=center>";
    echo "<td class=tabval><img src=img/blank.gif width=10 height=20></td>";
    echo "<td class=tabval><b>".htmlspecialchars($row['firstname'])."</b> </td>";
    echo "<td class=tabval>".htmlspecialchars($row['lastname'])."&nbsp;</td>";
    echo "<td class=tabval>".htmlspecialchars($row['address'])."</td> ";
    echo "<td class=tabval>".htmlspecialchars($row['phone'])."&nbsp;</td>";
    echo "<button type='"button'" class='"formbutton'" onclick='"printpage('" .     $lastname . "'); '">Print User Data</button>";

    echo "<td class=tabval></td>";
    echo "</tr>";
    $i++;
}
echo "<tr valign=bottom>";
    echo "<td bgcolor=#fb7922 colspan=6><img src=img/blank.gif width=1 height=8></td>";
    echo "</tr>";
echo $output;
}
else
echo "There was no matching record for the name " . $searchTerm;
?>

<br />
<a href="javascript:history.go(-1)">Done</a>