截斷表mysql php提供的錯誤

Question

我在輸入更多數據之前嘗試截斷表時收到此錯誤「分析錯誤：語法錯誤，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中以純文本的方式放置MySQL查詢。寫它作爲內部mysqli_query()與您當前打開的連接沿着一個字符串，如下圖所示：

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

整個代碼應該是：

<?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); 
?>