check_auth.php

<?php
    include "connection.php";
    session_start();
    if(isset($_POST["email"]) && isset($_POST["pass"])) {
        $email = $_POST["email"];
        $pass = $_POST["pass"];
        $rpass="";
        $sql="SELECT password FROM useracc WHERE email='$email'";
        $result = mysqli_query($conn,$sql);
        if($result->num_rows > 0) 
        {
            while($row = $result->fetch_assoc())
            {
                $rpass= $row['password'];
            }
        }

        if($rpass==$pass){
            $_SESSION["user"]=$email;
            header("Location: home.php");
        }
        else{
            echo "<script>alert('Oops! Incorrect email or password');window.location.replace('index.php')</script>";

        }


    }

?>