截断表mysql php提供的错误

Question

我在输入更多数据之前尝试截断表时收到此错误“分析错误：语法错误，意外的'TABLE'（T_STRING）”。

<?php 
     $servername = "localhost"; 
     $username = "root"; 
     $password = ""; 
     $dbname = "members"; 

     // Create connection 
     $conn = mysqli_connect($servername, $username, $password, $dbname); 
     // Check connection 
     if (!$conn) { 
     die("Connection failed: " . mysqli_connect_error()); 
     } 

     TRUNCATE TABLE users; 

     { 
     header ("Location: order.php"); 
     exit; 
     } 

     mysqli_close($conn); 
    ?> 

Answer 1

你不能在PHP中以纯文本的方式放置MySQL查询。写它作为内部mysqli_query()与您当前打开的连接沿着一个字符串，如下图所示：

mysqli_query($conn, "TRUNCATE TABLE `users`"); 

整个代码应该是：

<?php 
    $servername = "localhost"; 
    $username = "root"; 
    $password = ""; 
    $dbname = "members"; 

    // Create connection 
    $conn = mysqli_connect($servername, $username, $password, $dbname); 

    // Check connection 
    if (!$conn) { 
     die("Connection failed: " . mysqli_connect_error()); 
    } 
    else { 
     mysqli_query($conn, "TRUNCATE TABLE `users`"); 
     header ("Location: order.php"); 
     exit; 
    } 

    mysqli_close($conn); 
?>