Question

UPDATE 谢谢你解决了这个问题，但现在我收到这个错误“连接尝试失败，因为连接方在一段时间后没有正确响应或建立的连接失败，因为连接的主机无法响应。”我关闭了防火墙，我没有任何防病毒软件

我正在按照本教程将android应用程序连接到数据库 http://www.androidhive.info/2012/05/how-to-connect-android-with-php-mysql/

我在WAMPSERVER PHP版本5.4.3中托管我的php文件我得到了这两个错误我一直试图修复这个错误几个小时，但没有运气，请你帮我解决它

“警告：require_once（C：\ wamp \ wwwC：\ wamp \ www \ db_connect.php）：无法打开流：第12行的C：\ wamp \ www \ get_property_details.php中的参数无效”

和此错误

“致命错误：require_once（）：在C中打开所需的'C：\ wamp \ wwwC：\ wamp \ www \ db_connect.php'（include_path ='。; C：\ php \ pear'）失败：\ wamp \ www \ get_property_details.php第12行“

这些是我的档案 db_config.php

define('DB_USER', "student"); 
define('DB_PASSWORD', "student2"); 
define('DB_DATABASE', "test"); 
define('DB_SERVER', "student.database.university.ac.uk"); 
?>

db_connect.php

<?php


class DB_CONNECT {

    function __construct() {

        $this->connect();
    }


    function __destruct() {

        $this->close();
    }


    function connect() {

       require_once __DIR__ . "C:\\wamp\\www\\db_config.php";

        $con = mysql_connect(DB_SERVER, DB_USER, DB_PASSWORD) or die(mysql_error());

        $db = mysql_select_db(DB_DATABASE) or die(mysql_error()) or die(mysql_error());

        return $con;
    }


    function close() {

        mysql_close();
    }

}

?>

get_student_details.php

<?php

/*
 * Following code will get single student details
 * A student is identified by student id (student_id)
 */

// array for JSON response
$response = array();

// include db connect class
require_once __DIR__ . "C:\\wamp\\www\\db_connect.php";

// connecting to db
$db = new DB_CONNECT();

// check for post data
if (isset($_GET["student_id"])) {
    $student_id = $_GET['student_id'];

    // get a student from students table
    $result = mysql_query("SELECT * FROM TABLE_STUDENT WHERE student_id = $student_id");

    if (!empty($result)) {
        // check for empty result
        if (mysql_num_rows($result) > 0) {

            $result = mysql_fetch_array($result);

            $student = array();
            $student["student_id"] = $result["student_id"];
            $student["student_fname"] = $result["student_fname"];
            $student["student_lastName"] = $result["student_lastName"];
            $student["address"] = $result["address"];
            $student["postcode"] = $result["postcode"];
            $student["grade"] = $result["grade"];

            // success
            $response["success"] = 1;

            // user node
            $response["student"] = array();

            array_push($response["student"], $student);

            // echoing JSON response
            echo json_encode($response);
        } else {
            // no student found
            $response["success"] = 0;
            $response["message"] = "No student found";

            // echo no users JSON
            echo json_encode($response);
        }
    } else {
        // no student found
        $response["success"] = 0;
        $response["message"] = "No student found";

        // echo no users JSON
        echo json_encode($response);
    }
} else {
    // required field is missing
    $response["success"] = 0;
    $response["message"] = "Required field(s) is missing";

    // echoing JSON response
    echo json_encode($response);
}
?>

Answer 1

require_once __DIR__ . "C:\\wamp\\www\\db_config.php";

以上一行是你的问题。您的路径是错误的，因为您告诉PHP该文件位于当前目录和名为＆＃34; C：\ wamp \ www \ db_config.php＆＃34;的路径中。这显然是不正确的。

您的修复可能是要移除__DIR__，这是不必要的，因为您似乎已经对该文件进行了完整的修改：

require_once "C:\\wamp\\www\\db_config.php"

PHP致命错误：require_once（）：需要打开失败

1 个答案: