如何使用php脚本登录系统到数据库？

Question

i am trying to build a simple login system with php , but it dosent send the the user data to the data base i an using XAMPP as a server, plz check my code...

here is my dbh.inc.php - the file that connect to the server.

<?php 

$dbservername="localhost";
$dbusername="root";
$dbpassword="";
$dbname="loginsystem";



$conn= mysqli_connect($dbservername,$dbusername,$dbpassword,$dbname);

and here is my php script signup.inc.php that handle that send the data to the data base and tell it to put it in the pre table that i have set from the beginning

<?php


if  (isset($_POST['submit'])) {

include_once 'dbh.inc.php'; 

$first = mysqli_real_escape_string($conn, $_POST['first']); 
$last = mysqli_real_escape_string($conn, $_POST['last']); 
$email = mysqli_real_escape_string($conn, $_POST['email']); 
$uid = mysqli_real_escape_string($conn, $_POST['uid']); 
$pwd = mysqli_real_escape_string($conn, $_POST['pwd']); 




// inset the form data to the data base . 


    $sql= "INSERT_INTO users (user_first, user_last, user_email, user_uid, user_pwd) VALUES ('$first', '$last' , '$email', '$uid' , '$pwd');";
   mysqli_query($conn, $sql);

   exit(); 
// error handlers 
// check for empty fields. 


}


else {
header("Location: ../signup.php"); 
exit();

}

Answer 1

try to correct the query statement

$sql= "INSERT INTO users (user_first, user_last, user_email, user_uid, user_pwd) VALUES ('$first', '$last' , '$email', '$uid' , '$pwd')";

INSERT INTO instead of INSERT_INTO and remove the ; after the )