即时通讯包括php文件,但在此之后,我的css和引导是不工作的

即时通讯包括php文件,但在此之后,我的css和引导是不工作的,php,mysql,database,phpmyadmin,web-deployment,Php,Mysql,Database,Phpmyadmin,Web Deployment,我在index.php文件的顶部包含了db.php。但是在包含它之后,我的css和引导程序就不起作用了 这是我的php文件,我包括includeinside include是一个文件夹,db.php文件在其中 <?php include("includes/db.php"); ?> 2.这是html代码 <!DOCTYPE html> <html> <head> <title>E-COMMERCE</title&g

我在index.php文件的顶部包含了
db.php
。但是在包含它之后,我的css和引导程序就不起作用了

  • 这是我的php文件,我包括
    include
    inside include是一个文件夹,db.php文件在其中

    <?php 
    include("includes/db.php");
    ?>
    
    
    
  • 2.这是html代码

    <!DOCTYPE html>
    <html>
    <head>
        <title>E-COMMERCE</title>
        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css">
        <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
        <link rel="stylesheet" type="text/css" href="style/style.css">
    </head>
    <body>
    
    <div id="top">
        <div class="container">
           <div class="col-md-6 offer">
             <a href="#" class="btn btn-success btn-sm">welcome guest</a>
             <a href="#">shopping card total price:inr 100,total item 2 </a>
           </div>
           <div class="col-md-6">
             <ul class="menu">
                <li><a href="registration.php">register</a></li>
                <li><a href="customer/my_account.php">my account</a></li>
                <li><a href="#">go to cart</a></li>
                <li><a href="#">login</a></li>
             </ul>
           </div>
        </div>
    </div>
    
    
    
    
    电子商务
    
    3.这是用于动态滑块的php代码

    <?php
    $get_table="select * from slider LIMIT 0,1";
    $run_slider=mysqli_query($con,$get_table);
    while($row=mysqli_fetch_array($run_slider)){
        $slider_name=$row['slider_name'];
        $slider_image=$row['slider-image'];
        echo "<div class='item active'>
            <img src='admin_area/slider/$slider_image' alt='$slider_name'>
            </div>";
    }
    ?>
    
    <?php
    $get_table="select * from slider LIMIT 1,3";
    $run_slider=mysqli_query($con,$get_table);
    while($row=mysqli_fetch_array($run_slider)) {
        $slider_name=$row['slider_name'];
        $slider_image=$row['slider-image'];
        echo "<div class='item'>
            <img src='admin_area/slider/$slider_image' alt='$slider_name' >
            </div>";
    }
    
    ?>