搜索功能，无法正常工作

Question

我无法看到我要求的结果，它也随机显示我没有打算搜索的帖子。非常感谢帮助。

这部分代码似乎有用

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

    include_once 'dbh.inc.php';

    $search = mysqli_real_escape_string($conn, $_POST['searchEnter']);
    $search = htmlspecialchars($search);
    //$postcommentidGet = mysqli_real_escape_string($conn, $_GET['id']);        

    if (empty($search)) {
        header("Location: ../search.php?search=empty");
        exit();
    } 

我可能在查询中做错了什么

其他{

    $username=$_SESSION['u_uid'];
    $sql = "SELECT * FROM posts WHERE (posts_title LIKE '%".$search."%'') OR (posts_content LIKE '%".$search."%')";


    $result = mysqli_query($conn, $sql);
    $resultCheck = mysqli_num_rows($result);

这部分代码似乎没问题

if（$ resultCheck＆gt; 0）{             //输出每行的数据

        while($row = mysqli_fetch_assoc($result)) {




            echo' 




                   <div class="searchResults">

                   <p>'.$row['posts_title'].'  '.$row['posts_content'].'</p><br>
                   </div>



                   ';
               }
    }




    //exit();
                }




} else {
    header("Location: ../signup.php");
    exit();
}

}