Question

我正在尝试Android中的用户登录和注册表单。从过去5天开始，我正在尝试。我无法得到它。有人可以帮我吗？这是我的代码user_control.php。我在connection.php中加入了user_control.php。

<? php

    class user {
    private $db;
    private $connection;
    /* The below one is the consttructor*/
    function __construct() {
        header('Content-Type: application/json'); /* used for including json format*/
        require_once 'connection.php';
        $this->db = new DB_Connection();
        $this->connection = $this->db->get_connection();
    }

    public function does_user_exist($email,$password) {
        $query = "Select * from userss where email ='$email' and password = '$password'";
        $result = mysqli_query($this->connection,$query);
        if(mysqli_num_rows($result) > 0){
            $json['success'] = 'welcome'.$email;
            echo json_encode($json);
            mysqli_close($this->connection);
        } else {
            $query = " Insert into userss(email,password) values ('$email','$password')";
            $is_inserted = mysqli_query($this->connection, $query);
            if($is_inserted == 1) {
                $json['success'] = 'Account created, welcome '.$email;
            } else {
                $json['error'] = 'Wrong password';
            }

            echo json_encode($json);
            mysqli_close($this->connection);
        }
    }
}

    $user = new user();
    if(isset($_POST['email'],$_POST['password'])) {
    $email = $_POST['email'];
    $password = $_POST['password'];
    if(!empty($email) && !empty($password)) {
        $encrypted_password = md5($password);
        $user -> does_user_exist($email,$encrypted_password);
    } else {
        echo json_encode("You must fill both fields");

    }
    }

当我使用Chrome运行postman软件时，我收到错误，因为我收到语法错误：

unexpected 'header' (T_STRING) in   http://localhost:80/opt/lampp/htdocs/user_control.php

Answer 1

删除第1行中的空格1.应如下所示：

<?php

Answer 2

尝试发表评论：

//header('Content-Type: application/json'); /* used for including json format*/

来源：https://stackoverflow.com/a/20620606/2381906

我在http：// localhost：80 / opt / lampp / htdocs / user_control.php

2 个答案: