[英]How to make navigation menu selected on that particular page?
I am building a navigation system on a webpage using PHP, that basically queries data from MySQL database and display as ul, li menu on main menu. 我正在使用PHP在网页上构建导航系统,该系统基本上从MySQL数据库查询数据并在主菜单上显示为ul,li菜单。 But I couldn't figure out how do I make navigation menu selected when user goes to that page. 但是我不知道当用户转到该页面时如何选择导航菜单。 I have one idea but that doesn't make home menu selected by default when user enters that page. 我有一个主意,但是当用户进入该页面时,默认情况下不会使主菜单处于选中状态。
I have also a CSS class written to give that class to the anchor tag if it is that page. 我还编写了一个CSS类,以将该类提供给锚标记(如果它是该页面)。
here is my PHP code: 这是我的PHP代码:
//Query Functions
function queryMenu() {
$query = "SELECT * FROM menu_en";
return $query;
}
// Render Functions
function renderNav() {
$menus = queryMenu();
$queryMenu = mysql_query($menus);
while( $navigation = mysql_fetch_array($queryMenu) ){
if( $navigation['id'] == $_GET['pageId'] ){
echo '<li>
<a href="index.php?pageId="'.$navigation['id'].' class="selected" >'.$navigation['menu_title'].
'</a></li>';
}else{
echo '<li><a href="index.php?pageId="'.$navigation['id'].'>'.$navigation['menu_title'].'</a></li>';
}
}
}
Suggest me a better way to do this, as I want to enhance my skill in PHP. 向我建议一个更好的方法,因为我想提高自己的PHP技能。 And also please let me know if there is any wrong approach in above code. 同时请让我知道以上代码中是否有错误的方法。
If the home page is when $_GET['pageId'] is not set you could check using isset() 如果主页未设置$ _GET ['pageId'],则可以使用isset()检查
if(isset($_GET['pageId'])) {
$page = $_GET['pageId']
} else {
$page = $homePageId; // the ID of the home page.
}
Then you would replace this line: 然后,您将替换以下行:
if( $navigation['id'] == $_GET['pageId'] ){
with this line: 用这一行:
if( $navigation['id'] == $page ){
I think this would work, if i understand you correctly. 如果我正确理解你的话,我认为这会起作用。
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