警告：使用未定义的常量search_query - 在第721行的C：\ xampp \\\\\\\ [英] Warning: use of undefined constant search_query - assumed 'search_query' (this will throw an error in a future version of PHP) in C:\xampp\htdocs\CMS\all_post.php on line 721

问题描述

Hello all

我尝试在我的帖子页面上创建搜索引擎，但是此消息显示在页面上（

警告：使用未定义的常量search_query - 假设'search_query '（这将在未来的PHP版本中引发错误）在第721行的C：\ xampp \\\ htdocs \ CMS \ All_post.php中）在echoSome RESULT中;我试着打印一些东西但是也没有工作



我尝试了什么：

Hello all
I am try to make search engine on my post page but this message show on page (
Warning: Use of undefined constant search_query - assumed 'search_query' (this will throw an Error in a future version of PHP) in C:\xampp\htdocs\CMS\All_post.php on line 721) in echo "Some RESULT"; i am try to print something but not work also

What I have tried:

 <?php
            
            
        if(isset($_POST['submit'])) {
            
        $search = $_POST['search'];
            
        $query = "SELECT * FROM posts WHERE post_title LIKE '%$search%' ";   
        $query_search = mysqli_query($connection,$query); 
        }
//        if(!query_search) {
//        die("QUERY FAILED" . mysqli_error($connection));
//        }
//            $count = mysqli_num_rows($query_search);
//            if($count == 0){
//            echo "<h1> no result</h1>";
//               
//            }else {
//                
//                echo "Some RESULT";
//            }
//            }   
           
        ?>

推荐答案

_POST ['submit']））{

_POST['submit'])) {

search =

_POST ['search'];

_POST['search'];

这篇关于警告：使用未定义的常量search_query - 在第721行的C：\ xampp \\\\\\\的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！