不断收到 SQL 语法错误

Question

我已经尝试了很多东西，但出于某种原因我无法弄清楚为什么以下代码总是给我一个错误。

$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
} 

$sql = "INSERT INTO app_users (signupDate, userToken, ipAddress, countryCode, countryName, regionName, cityName, zipCode, latitude, longitude, timeZone, referer, userAgent, hostName)
VALUES ('$ls_signupDate', '$ls_userToken', '$ls_ipAddress', '$ls_countryCode', '$ls_countryName', '$ls_regionName', '$ls_cityName', '$ls_zipCode', '$ls_latitude', '$ls_longitude', '$ls_timeZone', '$ls_referer', '$ls_userAgent', '$ls_hostName)'";

if ($conn->query($sql) === TRUE) {
    echo "Content Inserted successfully";
} else {
    echo "Error inserting content: " . $conn->error;
}

它一直给我的错误是...

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 2

我做错了什么？

Answer 1

您的代码应如下所示：

$sql = "INSERT INTO app_users (signupDate, userToken, ipAddress, countryCode, countryName, regionName, cityName, zipCode, latitude, longitude, timeZone, referer, userAgent, hostName)
VALUES ('$ls_signupDate', '$ls_userToken', '$ls_ipAddress', '$ls_countryCode', '$ls_countryName', '$ls_regionName', '$ls_cityName', '$ls_zipCode', '$ls_latitude', '$ls_longitude', '$ls_timeZone', '$ls_referer', '$ls_userAgent', '$ls_hostName')";

注意单引号、括号和双引号的顺序。

不断收到 SQL 语法错误

Keep Getting A SQL Syntax Error

php

mysql

database

mysqli

syntax-error