eval problem

[TobiaZ]

da kommt bestimmt 1 raus oder so.

[mukraker]

ich habs nun anders gemacht funzt auch.

verbesserungen bitte anhängen:

<form name="<?php $_SERVER['PHP_SELF'] ?>" method="post" action="">
  <input name="feld1" type="text" value="feld1">
  <input name="feld2" type="text" value="feld2">
  <input name="feld3" type="text" value="feld3">
  <input type="submit" name="submit" value="Senden">
</form>
<?php
/* ******************************************** */
/*                                                */
/*    Funktion zum Auswerten von Usereingaben        */
/*    Author: Mukraker                        */
/*    Version: alpha 0.00000000000001                */
/*                                                */
/* ******************************************** */


//defines
define('TYPE_AUTO', 0);
define('TYPE_GET', 1);
define('TYPE_POST', 2);
define('TYPE_SESSION', 3);

//debug var function
function vd($var)
{
    //$var auf array checken
    if( is_array($var) OR is_object($var)) {
        echo "<hr><pre style=\"background-color:#FF8888\">";
        print_r($var);
        echo "</pre><hr>";
    } elseif(is_string($var)) {
        echo "<hr><p style=\"background-color:#FF8888\">".$var."<p><hr>";
    } else {
        echo "<hr><p style=\"background-color:#FF8888\">Inhalt der var:<br>".$var."<p><hr>";
    }
}

//check_fields function
function check_fileds($array) {

    foreach($array as $key => $value) {
        $var = false;
        //check typ
        switch( $value['type'] )
        {
            case TYPE_SESSION:
                if( isset($_SESSION[$value['name']]) )
                    $var = $_SESSION[$value['name']];
            break;
            
            case TYPE_POST:
                if( isset($_POST[$value['name']]) )
                    $var = $_POST[$value['name']];
            break;
            
            case TYPE_GET:
                if( isset($_GET[$value['name']]) )
                    $var = $_GET[$value['name']];
            break;
            
            case TYPE_AUTO:
                if( isset($_REQUEST[$value['name']]) )
                    $var = $_REQUEST[$value['name']];
            break;
        }
        
        //extra if 
        if(isset($value['extra'])) {
            $extra = substr($value['extra'], 1, -1);
            $input = $var;
        }

        //check if the var exist
        if(!$var) {
            $novar[] = array($value['name'],$value['msg']);
        }elseif(isset($value['extra'])) {
            $extra = substr($value['extra'], 1, -1);
            $input = $var;
            $evalstr = "if(".$extra.") {
                            if(isset(\$value['extra2'])) {
                                \$extra2 = \$value['extra2'];
                            } else {
                                \$extra2 = \$value['msg'];
                            }
                        \$novar[] = array(\$value['name'],\$extra2);
                        }";
            eval($evalstr);
            /* dass muss man unbeding mal anders lösen
            if(eval($extra)) {
                if(isset($value['extra2'])) {
                    $extra2 = $value['extra2'];
                } else {
                    $extra2 = $value['msg'];
                }
                $novar[] = array($value['name'],$extra2);
            }*/
        }
    }

    //build array
    if(isset($novar)) {
        foreach ($novar as $key => $value) {
            // hier könnte man evtl noch was machen
        }
    }

    return $novar;
}

if(isset($_POST['submit'])){
    //check array
    $array = array();
    $array[] = array('name'     =>     'feld1',
                    'msg'        =>    'hey feld1 eingeben',
                    'typ'        =>    TYPE_POST,
                    'extra'        =>    '($input != 3)',
                    'extra2'    =>    'hey extra bed nicht erfüllt');

    $array[] = array('name'     =>     'feld2',
                    'msg'        =>    'hey feld2 eingeben',
                    'typ'        =>    TYPE_POST,
                    'extra'        =>    '($input != 2)',
                    'extra2'    =>    'hey extra bed nicht erfüllt');

    $array[] = array('name'     =>     'feld3',
                    'msg'        =>    'hey feld3 eingeben',
                    'typ'        =>    TYPE_POST);

    $array[] = array('name'     =>     'feld4',
                    'msg'        =>    'hey feld4 eingeben',
                    'typ'        =>    TYPE_POST);

    vd(check_fileds($array));
} 

//show_source(__FILE__);
?>