Question

我正在尝试制作通知标签，但似乎没有做对。下拉列表工作正常但是ajax调用不能正常工作，当用firebug查看时会有结果，但在下拉列表中看不到。很容易混淆。（注意下拉菜单位于标题中，只有在会话初始化时才能显示）这里是jquery中使用的ajax：

function load_notifications(view=''){
   $.ajax({
       url: "notification/new_friends.php",
       method: "POST",
       data:{view:"view"},
       dataType:"json",
       success: function(data){

           $(".dropdown-menu").html(data.notification);
if(data.unseen_notification>0){
    $(".badge1").html(data.unseen_notification);
}
    }

   });
        //$(".dynamic-notification").load("notification/pm_n.php");
   // $(".dynamic-notification-f").load("notification/new_friends.php");
};
load_notifications();
$(document).on("click",".count_friend", function(){
    load_notifications('yes');
});
//loads every 2 seconds for chat
setInterval(function(){load_notifications();},2000);

这是new_friends.php内容：

<?php
include '../includes/dbconfig.inc.php';

if (isset($_POST['view'])) {

if($_POST['view'] !=''){
$update="update friends set count='1' where friend_one=:session and count='0'";
$stmt=$conn->prepare($update);
$stmt->bindValue(":session", $_SESSION['uname']);
$stmt->execute();
}
$sql123="select id from friends where friend_two=:sess_uname and count='0'";
$stmt123=$conn->prepare($sql123);
$stmt123->bindValue(":sess_uname", $_SESSION['uname']);
$stmt123->execute();
$request_count=$stmt123->fetchColumn();
//$count_friend=$stmt123->rowCount();
/*$sql_f_count="select *from user where user_id=:session_id and activated='1' limit 1";
$stmt_f_count=$conn->prepare($sql_f_count);
$stmt_f_count->bindValue(":session_id", $_SESSION['id']);
$stmt_f_count->execute();
$user_details=$stmt_f_count->fetchAll();
$friend_badge=$user_details[0]['friend_count_badge'];*/
require "notification/friend_request_notification.php";
// $new_friends="<span class='dropdown'><a href='#' data-placement='bottom' class='btn dropdown-toggle' data-toggle='dropdown' title='Friend Requests' data-html='true'><span class='count_friend' style=' height:33px; width:30px;'><span class='badge1 label label-pill'>".$count."</span><img src='img/logo/group-button-white.png' style='height:25px; width:27px;' alt='new_friends_alert'></span></a><ul class='dropdown-menu'></ul></span>"; 
//if($request_count[0]>0){
//$new_friends="<a href='#' data-placement='bottom' class='btn' data-trigger='focus' title='Friend Requests' data-toggle='popover' data-html='true' data-content='".$friend_requests."'><span class='count_friend' style=' height:33px; width:30px;'><img src='img/logo/group-button-white.png' style='height:25px; width:27px;' alt='new_friends_alert'></span><span class='badge'>".$friend_badge."</span></a>";
/*}else{
$new_friends="<a href='all_notifications.php'><img src='img/logo/group-button-black.png' style='height:25px; width:27px;' alt='new_friends_alert'></a>";
}*/
//echo $new_friends;
//}
$data=array(
'notification'=>$friend_requests,
'unseen_notification' =>$request_count[0][0]
);

和朋友请求输出的代码：

<?php
//error_reporting(0);
require_once 'includes/dbconfig.inc.php';
$sql = "select * from friends where friend_two=:session and accepted='0' order by friends_date_made asc";
$stmt = $conn->prepare($sql);
$stmt->bindparam(":session", $_SESSION['uname']);
$stmt->execute();
$numrows = $stmt->fetchAll(PDO::FETCH_ASSOC);
$friend_requests="";
if ($numrows < 1) {
$friend_requests = "You do not have any friend requests";
echo "$friend_requests";
exit();
} else {
foreach ($numrows as $i=>$row1 ) {
$reqid = $row1['friend_id'];
$user1 = $row1['friend_one'];
$datemade = $row1['friends_date_made'];
$datemade1 = strftime("%B %d, %y", strtotime($datemade));
$sql = "SELECT * FROM user WHERE uname=:user1 LIMIT 1";
$stmt = $conn->prepare($sql);
$stmt->bindparam(":user1", $user1);
$stmt->execute();
$thumbrow = $stmt->fetchAll(PDO::FETCH_ASSOC);
$user1avatar = $thumbrow[$i]['avatar'];
$user1id=$thumbrow[$i]['user_id'];

if ($user1avatar =="") {
$user1pic = '<img src="img/avatardefault.png" height="50" style="float:left;" width="50" alt="'.$user1.'" class="user_pic">';
} else {
$user1pic = '<img src="../user/user/'.$user1id.'/'.$user1avatar.'" height="50" style="float:left;" width="50" alt="'.$user1.'" class="user_pic">';

}
$friend_requests .= '<li><div id="'.$reqid.'" float="right" class="friendrequests">
<a href="home.php?u='.$user1.'">'. $user1pic .'</a>
<div class="user_info '.$reqid.'" id="'.$reqid.'"><small>' . $datemade1 . '</small>
<a href="home.php?u='.$user1.'">'.$user1.'</a> is requesting your friendship<br /><br />
<button id="'.$reqid.'" name="'.$_SESSION['uname'].'" sess="'.$_SESSION['id'].'" class="accept_btn btn btn-warning">Accept</button><span class="show-spinner"></span> or
<button id="'.$reqid.'" name="'.$_SESSION['uname'].'" sess="'.$_SESSION['id'].'" class="reject_btn btn btn-warning">Reject</button>
</div>
</div><hr></li>';


}

}

Answer 1

这是下拉填充，如果可以帮助：

<?php
// Assume $db is a PDO object

$dbh = new PDO('mysql:host=localhost;dbname=populatedropdown', "root", "");

$query = $dbh->query("select * from position"); // Run your query

echo '<form action="populate.php" method="get">';
echo '<select name="populate">'; // Open your drop down box



// Loop through the query results, outputing the options one by one
while ($row = $query->fetch(PDO::FETCH_ASSOC)) {
   echo '<option value="'.$row['id'].'">'.$row['name'].'</option>';
}

echo '</select>';// Close your drop down box


echo '<input type="submit" name="edit" value="Edit">';

echo '</form>';
?>

动态下拉菜单无法正常工作

1 个答案: