Question

我正在做项目，它需要android-PHP-MySQL连接。我编写了PHP代码，但它不起作用。错误代码显示“未定义索引：userId ...＆＃39; 我不知道如何解决它。我用谷歌搜索得到一些解决方案，但我找不到正确的答案。其他PHP代码与另一个Android项目正在工作。为什么..？

以下是我的PHP代码。

<?php 
error_reporting(E_ALL);
ini_set("display_errors", 1);

require "init.php";

$userId = $_POST["userId"];
$username = $_POST["username"];
$userphone = $_POST["userphone"];
$usermail = $_POST["usermail"];
$userpw = $_POST["userpw"];      

$sql = "INSERT INTO register_info VALUES ('$userId', '$username', '$userphone', '$usermail', '$userpw' );";
if(mysqli_query($con, $sql))
{
    var_dump($userId,$username,$userphone,$usermail, $userpw );
}

?>

这是错误代码。

Notice: Undefined index: userId in /var/www/html/website/web/webapp/insertUser.php on line 9

Notice: Undefined index: username in /var/www/html/website/web/webapp/insertUser.php on line 10

Notice: Undefined index: userphone in /var/www/html/website/web/webapp/insertUser.php on line 11

Notice: Undefined index: usermail in /var/www/html/website/web/webapp/insertUser.php on line 12

Notice: Undefined index: userpw in /var/www/html/website/web/webapp/insertUser.php on line 13
string(0) "" string(0) "" string(0) "" string(0) "" string(0) ""

Answer 1

查询mysql有解决方案。

试

$sql = "INSERT INTO register_info (userId, username, userphone, usermail, userpw) VALUES ('$userId', '$username', '$userphone', '$usermail', '$userpw' );";

或参见

https://www.w3schools.com/php/php_mysql_insert.asp

PHP错误 - 未定义的索引：userId

1 个答案: