PHP script won't run_问答_开发者_运维开发者技术经验分享

开发者 https://www.devze.com 2023-01-05 07:27 出处：网络

I\'m currently coding a CMS in PHP in order to get back into PHP (I use to use it all the time). However, for some odd reason, when \"including\" or \"requiring\" my classes file,it simply stops the p

相关专题：php

I'm currently coding a CMS in PHP in order to get back into PHP (I use to use it all the time). However, for some odd reason, when "including" or "requiring" my classes file, it simply stops the php script, my login form (login.php's html) does not show up (whether I am logged in or not). Any help? Here are two of my scripts:

<?php
session_start();
include "classes.php";
if(isset($_GET['logout'])) {
    setupSession(2); 
}
if($_SESSION['status'] == "online") header("location: admin.php");
if($_POST && isset($_POST['username']) && isset($_POST['password'])) {
    $un = $_POST['username'];
    $pwd = $_POST['password'];

    $mysql = new mySql();
    $mysql->validateUser($un, $pwd);
} else $attempt = 2;

?>  
<html>
<head>
    <title>Log In</title>
</head>
<body>
<form method="post" action="">
    <label for="username">username: </label>
    <input type="text" name="username" />

    <label for="password">password: </la开发者_StackOverflowbel>
    <input type="password" name="password" />

    <input type="submit" value="Log In" name="submit" />
</form>
</body>
</html>

and classes.php

<?php

class mySql {

    protected $dbname;
    protected $dbuser;
    protected $dbpass;
    protected $db;
    private $conn;

    function __construct() {
        $conn = new mysqli($dbname, $dbuser, $dbpass, $db);
    }

    public function validateUser($username, $password) {
        $query = "SELECT * FROM users WHERE username = ? AND password = ? LIMIT 1";

        if($stmt = $this->conn->prepare($query)) {
            $stmt->bind_param('ss', $username, $password);
            $stmt->execute();

            if($stmt->fetch()) {
                $stmt->close();
                setupSession(1);
            } else $attempt = 1;
        }
    }
}

function setupSession($status) {
    switch($status) {
        case 1:
            $_SESSION['status'] = "online";
            //other user variables
            header("location: admin.php");
            break;
        case 2:
            unset($_SESSION['status']);
            if(isset($_COOKIE[session_name()])) {
                setcookie(session_name(), '', time() - 1000);
            }
            session_destroy();
            break;
        default:
            session_start();
            if($_SESSION['status'] != "online") header("location: login.php");
            break;
    }
}

?>

You have a scope problem.

$conn = mysqli(....)

should be $this->conn = mysqli(....)

There are not lots of reasons for a required script to break the parent : the required file does not exist, it has an error or it calls exit() or die().

Are you sure that the file classes.php is in the same folder as your script, or in the include path ?

Is this the exact code you are using ?

With a constructor like this :

function __construct() {
    $conn = new mysqli($dbname, $dbuser, $dbpass, $db);
}

How the hell do you connect to your database ?

$mysql = new mySql();

function __construct() {
    $conn = new mysqli($dbname, $dbuser, $dbpass, $db);
}

Should Be

function __construct($dbname, $dbuser, $dbpass, $db) {
    $this->dbname = $dbname;
    $this->dbuser = $dbuser;
    $this->dbpass = $dbpass;
    $this->db     = $db;
    $this->connect();
}

function connect()
{
    $this->conn = new mysqli($this->dbname, $this->dbuser, $this->dbpass, $this->db);
}

Something of that nature.