Question

我尝试了这些代码，但是他们给了我一条错误信息

＆＃34;警告：mysqli_fetch_array（）要求参数1为mysqli_result，第67行/home/ubuntu/workspace/php_html_table_data_filter.php中给出布尔值。调用堆栈：0.0004 237240 1. {main}（）/ home / ubuntu / workspace / php_html_table_data_filter.php：0 0.0011 237976 2. mysqli_fetch_array（）/ home /ubuntu /workspace / php_html_table_data_filter.php：67＆＃34;

这是我尝试过的代码。我认为在concat的查询语句中会出现错误，因为当我运行时，整个数据库出现但是当我点击搜索时，错误消息将会出现。我真的希望有人能够帮助我:)

<?php

if(isset($_POST['search']))
{
    $valueToSearch = $_POST['valueToSearch'];
    // search in all table columns
    // using concat mysql function
    $query = "SELECT * FROM `users` WHERE CONCAT(`id`, `fname`, `lname`, `age`) LIKE '%".$valueToSearch."%'";
    $search_result = filterTable($query);

}
 else {
    $query = "SELECT * FROM `users`";
    $search_result = filterTable($query);
}

// function to connect and execute the query
function filterTable($query)
{
    $connect = mysqli_connect("localhost", "root", "", "test_db");
    $filter_Result = mysqli_query($connect, $query);
    return $filter_Result;
}

?>

<!DOCTYPE html>
<html>
    <head>
        <title>PHP HTML TABLE DATA SEARCH</title>
        <style>
            table,tr,th,td
            {
                border: 1px solid black;
            }
        </style>
    </head>
    <body>

        <form action="php_html_table_data_filter.php" method="post">
            <input type="text" name="valueToSearch" placeholder="Value To Search"><br><br>
            <input type="submit" name="search" value="Filter"><br><br>

            <table>
                <tr>
                    <th>Id</th>
                    <th>First Name</th>
                    <th>Last Name</th>
                    <th>Age</th>
                </tr>

      <!-- populate table from mysql database -->
                <?php while($row = mysqli_fetch_array($search_result)):?>
                <tr>
                    <td><?php echo $row['id'];?></td>
                    <td><?php echo $row['fname'];?></td>
                    <td><?php echo $row['lname'];?></td>
                    <td><?php echo $row['age'];?></td>
                </tr>
                <?php endwhile;?>
            </table>
        </form>

    </body>
</html>

使用concat过滤（php和mysql）

0 个答案: