phpauthentication/process.php at main · nuelcyoung/phpauthentication · GitHub

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<?php
if(isset($_POST['login'])){
    $user_name = $_POST['user_name'];
    $password = $_POST['password'];
    $myfile = file_get_contents("files/user.json");
    $json = json_decode($myfile, true);

    foreach ($json as $val) {
        if($val['user_name'] == $user_name
           && $val['password'] == $password) {
            echo "Welcome ". $user_name;
        }
    }
}
if(isset($_POST['forgot'])){
    $user_name = $_POST['user_name'];
    $password = $_POST['password'];
    $myfile = file_get_contents("files/user.json");
    $json = json_decode($myfile, true);

    foreach ($json as &$val) {
        if($val['user_name'] == $user_name){
            $val['password'] = $password;
        }
            echo "Updated ". $user_name;
    }
    file_put_contents("files/user.json",json_encode($json));
}

if(isset($_POST['register'])){
    $first_name =   $_POST['first_name'];
    $last_name = $_POST['last_name'];
    $user_name = $_POST['user_name'];
    $dob =  $_POST['dob'];
    $password = $_POST['password'];
    //Data array to save
    $data_array=[
        'first_name' =>$first_name,
        'last_name' =>$last_name,
        'user_name' =>$user_name,
        'dob'=>$dob,
        'password'=>$password
    ];
//     $myfile = fopen("files/user.json", "w");
// fwrite($myfile, json_encode($data_array));
// fclose($myfile);
    file_put_contents("files/user.json",json_encode($data_array));
    echo $first_name . $last_name . $dob . $user_name . $password;

}
?>