注册android系统错误php

我正在尝试建立一个android登录系统，当我尝试注册时，我发现用户无法存储，我无法找到错误。我正在使用000webhost，我不知道这是否与此有关。请帮忙，谢谢你

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我有互联网权限，并且登录正常，所以我认为这不是连接或数据库的问题。当我尝试注册时，代码转到“用户未能存储”部分，打印出“注册中发生未知错误！”

这是register.php：

    <?php
    require_once 'include/DB_Functions.php';

$db = new DB_Functions();
// json response array
$response = array("error" => FALSE);

if (isset($_POST['name']) && isset($_POST['email']) && isset($_POST['password'])) {

    // receiving the post params
    $name = $_POST['name'];
    $email = $_POST['email'];
    $password = $_POST['password'];

    // check if user is already existed with the same email
    if ($db->isUserExisted($email)) {
        // user already existed
        $response["error"] = TRUE;
        $response["error_msg"] = "User already existed with " . $email;
        echo json_encode($response);
    } else {
        // create a new user
        $user = $db->storeUser($name, $email, $password);
        if ($user) {
            // user stored successfully
            $response["error"] = FALSE;
            $response["uid"] = $user["unique_id"];
            $response["user"]["name"] = $user["name"];
            $response["user"]["email"] = $user["email"];
            $response["user"]["created_at"] = $user["created_at"];
            $response["user"]["updated_at"] = $user["updated_at"];
            echo json_encode($response);
        } else {
            // user failed to store
            $response["error"] = TRUE;
            $response["error_msg"] = "Unknown error occurred in registration!";
            echo json_encode($response);
        }
    }
} else {
    $response["error"] = TRUE;

    $response["error_msg"] = "Required parameters (name, email or password) is missing!";
    echo json_encode($response);
}
?>

这是DB_Functions.php类：

<?php

class DB_Functions {

    private $conn;

    // constructor
    function __construct() {
        require_once 'DB_Connect.php';
        // connecting to database
        $db = new Db_Connect();
        $this->conn = $db->connect();
    }

    // destructor
    function __destruct() {

    }

    public function consigueResultado( $stmt ) {
        $RESULT = array();
        for ( $i = 0; $i < $stmt->num_rows; $i++ ) {
            $Metadata = $stmt->result_metadata();
            $PARAMS = array();
            while ( $Field = $Metadata->fetch_field() ) {
                $PARAMS[] = &$RESULT[ $i ][ $Field->name ];
            }
            call_user_func_array( array( $stmt, 'bind_result' ), $PARAMS );
            $stmt->fetch();
        }
        return $RESULT;
    }

    /**
     * Storing new user
     * returns user details
     */
    public function storeUser($name, $email, $password) {
        $uuid = uniqid('', true);
        $hash = $this->hashSSHA($password);
        $encrypted_password = $hash["encrypted"]; // encrypted password
        $salt = $hash["salt"]; // salt
        $stmt = $this->conn->prepare("INSERT INTO users(unique_id, name, email, encrypted_password, salt, created_at) VALUES(:uuid, :name, :email, :encrypted_password, :salt, NOW())");
        $stmt->bindParam(':uuid', $uuid);
        $stmt->bindParam(':name', $name);
        $stmt->bindParam(':email', $email);
        $stmt->bindParam(':encrypted_password', $encrypted_password);
        $stmt->bindParam(':salt', $salt);
        $result = $stmt->execute();
        //$this->conn = NULL;
        //$stmt = NULL;

        // check for successful store
        if ($result) {
            $stmt = $this->conn->prepare("SELECT * FROM users WHERE email = :email");
            $stmt->bindParam(':email', $email);
            $stmt->execute();
            $user = $this->consigueResultado( $stmt );
            //$this->conn = NULL;
            $stmt = NULL;

            return $user;
        } else {
            return false;
        }
    }

    /**
     * Get user by email and password
     */
    public function getUserByEmailAndPassword($email, $password) {

        $stmt = $this->conn->prepare("SELECT * FROM users WHERE email = :email");

        $stmt->bindParam(':email', $email);

        if ($stmt->execute()) {
            $user = $this->consigueResultado( $stmt );
            //$this->conn = NULL;
            $stmt = NULL;

            return $user;
        } else {
            return NULL;
        }
    }

    /**
     * Check user is existed or not
     */
    public function isUserExisted($email) {
        $stmt = $this->conn->prepare("SELECT email from users WHERE email = :email");

        $stmt->bindParam(':email', $email);

        $stmt->execute();

        if ($stmt->num_rows > 0) {
            // user existed 
            //$this->conn = NULL;
            $stmt = NULL;

            return true;
        } else {
            // user not existed
            //$this->conn = NULL;
            $stmt = NULL;
            return false;
        }
    }

    /**
     * Encrypting password
     * @param password
     * returns salt and encrypted password
     */
    public function hashSSHA($password) {

        $salt = sha1(rand());
        $salt = substr($salt, 0, 10);
        $encrypted = base64_encode(sha1($password . $salt, true) . $salt);
        $hash = array("salt" => $salt, "encrypted" => $encrypted);
        return $hash;
    }

    /**
     * Decrypting password
     * @param salt, password
     * returns hash string
     */
    public function checkhashSSHA($salt, $password) {

        $hash = base64_encode(sha1($password . $salt, true) . $salt);

        return $hash;
    }

}

?>

好的，我通过使用已弃用的mysql版本，而不是使用PDO来实现它。代码和数据库是正确的（我认为），我相信它给了我错误，因为000webhost不支持PDO或mysqli库

您必须更具体地说，当您尝试使用浏览器发布时会发生什么情况？这样行吗？使用postman（chrome/chrome应用程序）将帖子数据发送到该url，如果这样做有效，您在android设备上遇到的错误是什么？你确定它在提出请求吗？你有android.permission.INTERNET权限吗？我有INTERNET权限，并且登录正常，所以我认为连接或数据库没有问题。当我尝试注册时，代码会转到“用户未能存储”部分，打印出“注册时发生未知错误！”。您可以进入

storeUser

函数并尝试调试吗？检查程序流是否进入

if（$result）

块检查执行时实际采用的路径。