php - 您的 SQL 语法有错误；检查与您的 MariaDB 服务器版本相对应的手册，了解使用 nea 的正确语法

Question

这个问题在这里已经有了答案:





Syntax error due to using a reserved word as a table or column name in MySQL

(1 个回答)


9 个月前关闭。




我收到此错误
//错误

ERRORINSERT INTO new_comp_reg (phno , fullname , address , dept , desc) VALUES ('','','','','') You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'desc) VALUES ('','','' ,'','')' at line 1

PHP

<?php

    $servername = 'mysql.hostinger.in';
    $username = '';
    $password = '';
    $dbname = 'u424351292_icrcm';

    if(isset($_POST['submit']))
    {
        $phone_no = $_POST['phno'];
        $full_name = $_POST['fullname'];
        $location = $_POST['address'];
        $department = $_POST['dept'];
        $description = $_POST['desc'];
    }

        $conn = new mysqli($servername,$username,$password,$dbname);

        if($conn->connect_error)
        {
            die("Connection Failed" . $conn->connect_error);
        }

        $sql = "INSERT INTO new_comp_reg (phno , fullname , address , dept , desc)  VALUES ('$phone_no' , '$full_name' , '$location' , '$department' , '$description')";

        if($conn->query($sql) === TRUE)
        {
            echo "Complaint Registered";
        }
        else
        {
            echo "ERROR".$sql."<br>".$conn->error;
        }

    $conn->close();
    ?>

//错误

ERRORINSERT INTO new_comp_reg (phno , fullname , address , dept , desc) VALUES ('','','','','') You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'desc) VALUES ('','','' ,'','')' at line 1

Answer 1

desc是 reserved keyword in MySQL并且需要通过反引号进行转义。

INSERT INTO new_comp_reg (..., `desc`)  VALUES (...)

或将您的列名更改为 description例如。

顺便说一句，您没有逃避可能导致语法错误和 SQL 注入(inject)的用户输入。使用准备好的语句。