RaFaeL Security v2

<?php
    //=======================================================================
    //==                        RaFaeL Security                            ==
    //=======================================================================
    class Security {
        private $xss = array(
            "htmlspecialchars" => true,
            "htmlentities" => true, //Don't use if strip_tags enabled
            "strip_tags" => false //Don't use if htmlentities enabled
        ), $sql = array(
            "stripslashes" => true,
            "mysql_real_escape_string" => true
        ), $settings = array(
            "REQUEST_ENCTYPE" => true,
            "DOUBLE_ENCTYPE"  => true
        );
        function __construct($settings = array(), $enabled = array()) {
            foreach($enabled as $enable=>$value) {
                $this->SetFunc($enable, $value);
            }
            foreach($settings as $setting=>$value) {
                if(isset($this->settings[$setting]) && is_bool($value)) $this->settings[$setting] = $value;
            }

            if($this->settings["REQUEST_ENCTYPE"]) {
                foreach($_REQUEST as $name=>$value)
                    $_REQUEST[$name] = $this->Sql($value);
            }
        }
        function Xss($str) {
            foreach($this->xss as $func=>$state) {
                if($state == true) $str = $func($str);
            }

            return $str;
        }
        function Sql($str) {
            foreach($this->sql as $func=>$state) {
                if($state == true) $str = $func($str);
            }

            return $str;
        }
        function SetFunc($enable, $value = true) {
            if(isset($this->xss[$enable]) && is_bool($value)) $this->Xss[$enable] = $value;
            else if(isset($this->sql[$enable]) && is_bool($value)) $this->Sql[$enable] = $value;
            return true;
        }
        function Enctype($str) {
            $str = hash('sha256', md5($str));
            return $this->settings["DOUBLE_ENCTYPE"]? (substr(hash('sha512', $str), strlen($str), strlen($str)*0.8)):($str);
        }
    }

    //Usage Example's:
    $Security = new Security(array("REQUEST_ENCTYPE" => false)); // $Security = new Security([Settings], [Disabled]);
    $Security->SetFunc("htmlentities", true);
    echo $Security->Xss("<html>'RaFaeL's Security class'</html>"); //&lt;html&gt;'RaFaeL's Security class'&lt;/html&gt;
    echo "<br />";
    echo $Security->Sql("'RaFaeL's Security class'"); //\'RaFaeL\'s Security class\'
    echo "<br />";
    echo $_REQUEST["test"];
    echo "<br />";
    echo $Security->Enctype("RaFaeL"); //e980a7582c517886f2d80f88fd9a5a533a6fab71f3b4b04c8dcb1b59e4f2f033
?>