Question

我试图从索引页面调用自定义函数（而不是像其他建议的问题那样使用mysql_ *）。索引页面调用三个自定义函数。前两个正常工作，但第三个功能是抛出和错误：

致命错误：未捕获错误：在F：\ Apache24 \ htdocs \ Site1 \ index.php中调用未定义函数display_index1（）：45堆栈跟踪：在F：\ Apache24 \ htdocs \ Site1 \中抛出＃0 {main}第45行的index.php

这是我的索引页面，它正在调用函数：

 <!DOCTYPE html>
    <?php 
    include("includes/connect.php");
    include("includes/functions.php"); 
    ?>
    <html>
    <head>
        <title>Ecommerce Website</title>
        <link rel="stylesheet" type="text/css" href="styles/style.css">
        <script src="js/style.js"></script>
    <body>
        <div class="container-fluid">
            <header>
                <div class="form">
                    <form method="get" target="" name="searchbar_form">
                        <input type="text" name="searchbar" id="searchbar">
                        <input type="submit" id="search_button" value="Search">
                    </form>
                </div>
            </header>
            <div class="menubar">

                    <div class="dropdown">
                        <button onclick="dropdownToggle()" class="dropdown-button">Shop By Category</button>

                            <ul class="dropdown-content" id="dropdownContent">
                                Categories
                                <?php getcats(); ?>
                                Brands
                                <?php getbrands(); ?>
                            </ul>

                    </div>
                <div class="menubar-div">
                    <ul class="menu-items">
                        <?php getcats(); ?>
                    </ul>
                </div>
                <div class="cart">
                    <a href="#">Cart</a>
                </div>
            </div>
            <div class="content">
                <div class="index_product_row">
                    <?php display_index1(); ?>
                </div>
            </div>
        </div>
        <div class="footer">
                This is footer
        </div>
    </body>
    </html>

这是functions.php文件，它有三个被调用的函数：

<?php 

    function getcats(){
        global $con;

        $get_cats="select * from categories";
        $run_cats=mysqli_query($con, $get_cats);

        while($row_cats=mysqli_fetch_array($run_cats)){
            $cat_id = $row_cats['cat_id'];
            $cat_title = $row_cats['cat_title'];

            echo "<li><a href='#'>$cat_title</a></li>";
        }
    }



    function getbrands(){
        global $con;

        $get_brands="select * from brands";
        $run_brands=mysqli_query($con, $get_brands);

        while($row_brands=mysqli_fetch_array($run_brands)){
            $brand_id = $row_brands['brand_id'];
            $brand_title = $row_brands['brand_title'];

            echo "<li><a href='#'>$brand_title</a></li>";
        }
    }


    function display_index1(){
        global $con;

        $display_query = "select(product_image, product_title) from products where product_cat='1'";
        $display_result = mysqli_query($con, $display_query);

        while($result_rows = mysqli_fetch_array($display_result)){
            $product_image = $result_rows['product_image'];
            $product_title = $result_rows['product_title'];

            echo "<img src='/admin/product_images/".$product_image."' width='200' height='200' alt='".$product_title."'/>";
            echo "<span id='index_product_title'>".$product_title."</span>";
        }
    }

?>

前两个函数成功返回数据。调用第三个是返回错误。

Answer 1

有一个旧的重复文件导致前两个功能正常工作，但第三个是在最新文件中，这就是它无法正常工作的原因。

致命错误：未捕获错误：调用未定义函数

1 个答案: