Posts by devlover

<?php  
 
class Kraak  
{  
    protected $db;  


    //De constructor  
    public function __construct()  
    {  
        $this->db = new PDO(); // heb dit even weggehaald.  
        $query = "SELECT `0` FROM `kluis`";  
        $num = $this->db->query($query)->rowCount();  
        //Kijken of er al een code is aangemaakt die geraden moet worden, zoniet aanmaken.  
        if (!$num) {  
            $this->_CreateCode();  
        }  
    }  
    //De boel afbreken, connectie afsluiten.  
    public function __destruct()  
    {  
        $this->db = null;  
    }  
    //Laatste 5 geraden code's.  
    public function getLaatste5()  
    {  
        $query = "SELECT `0`,`1`,`2`,`3`,`4`,`5` FROM kluis WHERE code='0' ORDER BY date DESC";  
        $dbres = $this->db->query($query);  


        if ($dbres) {  
            $return = null;  
            while ($list = $dbres->fetch(PDO::FETCH_ASSOC)) {  
                $return .= $this->_ColourCode($list);  
                $return .= "<br />";  
            }  
        }  
        return $return;  
    }  
    //Controleren of de code juist is.  
    public function CheckCode($code)  
    {  
        $query = "SELECT code FROM kluis WHERE code='0'";  
        $num = $this->db->query($query)->rowCount();  


        $check = $this->_CheckCode($code);  


        //De code is geraden, tabel leegmaken, nieuwe code aanmaken.  
        if (array_sum($check) == 12) {  
            $query = "TRUNCATE table kluis";  
            $this->db->exec($query);  
            $this->_CreateCode();  
            return true;  
        }  
        //Er is een verkeerde code opgegeven.  
        elseif (array_sum($check) == -1) {  
            return false;  
        }  
        //De code is juist opgegeven maar komt niet helemaal overeen met de code in de database.  
        else {  
            if ($num < 5) {  
                $query = "INSERT INTO kluis VALUES (:code0, :code1, :code2, :code3, :code4, :code5, '0', NOW())";  
                $this->_PrepareQuery($query, $code);  
            } else {  
                $query = "UPDATE kluis SET `0`=:code0, `1`=:code1, `2`=:code2, `3`=:code3, `4`=:code4, `5`=:code5, date=NOW() WHERE code='0' ORDER BY date LIMIT 1";  
                $this->_PrepareQuery($query, $code);  
            }  
            $return = $this->_ColourCode($code);  
            return $return;  
        }  
    }  
    //Controleren of de code wel alfabetisch/numeriek is. Vergelijking met de code in de database.  
    protected function _CheckCode($code)  
    {  
        if (!ctype_alpha($code[0]) || !ctype_alpha($code[1]) || !ctype_alpha($code[2]) || !ctype_alpha($code[3]) || !ctype_digit($code[4]) || !ctype_digit($code[5])) {  
            return array(-1);  
        }  


        $query = "SELECT `0`,`1`,`2`,`3`,`4`,`5` FROM kluis WHERE code='1' ORDER BY date DESC";  
        $list = $this->db->query($query)->fetch(PDO::FETCH_ASSOC);  


        foreach ($code as $key => $value) {  
            if (strtoupper($value) == strtoupper($list[$key])) {  
                $return[$key] = 2;  
            } elseif (in_array(strtoupper($value), $list)) {  
                $return[$key] = 1;  
            } else {  
                $return[$key] = 0;  
            }  
        }  
        return $return;  
    }  
    //Als er nog geen code is aangemaakt wordt deze hier aangemaakt.  
    protected function _CreateCode()  
    {  
        $letters = range('A', 'Z');  


        $code[0] = $letters[rand(0, 25)];  
        $code[1] = $letters[rand(0, 25)];  
        $code[2] = $letters[rand(0, 25)];  
        $code[3] = $letters[rand(0, 25)];  
        $code[4] = rand(0, 9);  
        $code[5] = rand(0, 9);  


        $query = "INSERT INTO kluis VALUES (:code0, :code1, :code2, :code3, :code4, :code5, '1', NOW())";  
        $this->_PrepareQuery($query, $code);  
    }  
    //De code de kleur geven naargelang de vergelijking met de code in de database.  
    protected function _ColourCode($code)  
    {  
        $check = $this->_CheckCode($code);  
        $return = null;  
        foreach ($check as $key => $value) {  
            switch ($value) {  
                case 2:  
                    $return .= "<span style=\"color: green;\">" . $code[$key] . "</span>";  
                    break;  
                case 1:  
                    $return .= "<span style=\"color: orange;\">" . $code[$key] . "</span>";  
                    break;  
                default:  
                    $return .= "<span style=\"color: red;\">" . $code[$key] . "</span>";  
            }  
        }  
        return $return;  
    }  
    protected function _PrepareQuery($query, $code)  
    {  
        $stmt = $this->db->prepare($query);  
        $nr = 0;  
        while ($nr <= 5) {  
            $stmt->bindParam(":code" . $nr, $code[$nr]);  
            $nr++;  
        }  
        $stmt->execute();  
    }  
}  
?>

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