Syntax error

//  Then you actually have to declare the functions that will generate the pages/page content.
function boj_menuexample_settings_page() {

  echo "<h1>Settings Page</h1>";

}
function boj_menuexample_about_page() {

  echo "<h1>APPLICATION</h1>";

function displayBook ($resultItems)
{
foreach ($resultItems AS $item)
{
$title = $item['ProductName'];
$url = $item['Url'];
$image = $item['ImageUrlSmall'];
$authorList = implode($item['Authors'], ", ");
$price = $item['ListPrice'];
if ($url != "") echo "<img src=\"$image\" align=\"left\">";
echo "<a href=\"$url\" title=\" Learn More at Amazon.com\">$title<a><br>";
echo "Author(s): ". $authorList. "<br>";
echo "List Price:" . $price;
echo "<br>";
}
}

function runSearchQuery($client, $keywords, $page, $mode , $type='lite')

{
$params = array(
'keyword' => $keywords,
'page' => $page,
'mode' => $mode,
'tag' => 'xymalfsentert-20',
'type' => $type,
'devtag' => 'AKIAIQ2ZQ6JWDC5LOJLA',

);

$namespace = 'https://soap.amazon.com';
$action = 'https://soap.amazon.com';
$method = "KeywordSearchRequest";
$result = $client->call($methos, array('KeywordSearchRequest' =>$params),
$namespace, $action);

return $result;

}

<form action="./soap.search.php" method ="get"> ## syntax error #
<input type="text" name="query">
<input type="hidden" name="page" value="1">
<select name="mode">

$modes = array();
$modes[] = "books";

foreach ($modes as $mode)
{
echo "<option value =\"$mode\">$mode</option>";
}
</select>
<input type="submit">
</form> #syntax error ##

$resultItems = $result['Details'];

switch ($mode)
{
case "books":
displayBook($resultItems);
break;
}
if ($result['TotalPages'] > $page)
{
$page++;
echo "<a href=\"soap.search.php?query&mode&page=$page\"> Next 10 Results</a>";
}

}
function boj_menuexample_uninstall_page() {

  echo "<h1>Uninstall Page</h1>";

}

?>

getting syntax errors also would like the amazon tags on my setting page and be able to get variables into my app.