Untitled

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>
    <title>Dodawanie wpisu</title>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
</head>

<body>
<?php
    if(isset($_POST['userName']) && isset($_POST['password']) && isset($_POST['userText']) && isset($_POST['date'])&& isset($_POST['time'])){
        $userName = $_POST['userName']."\n";
        $password = md5($_POST['password'])."\n";
        $blogs = scandir('Blogi');
        $postsWithSameTime = 0;
        $possible = array();
        foreach($blogs as $value){
            $info = file('Blogi/'.$value.'/info');
            if(($info[0]==$userName) && $info[1]==$password){
                array_push($possible, $value);
            }
        }
        $collection = serialize($_POST);
        if(count($possible)==1){
            $_POST['blog']=$possible[0];
        }
        elseif(count($available) == 0){
            echo 'Nie posiadasz żadnego bloga! <a href="zad1.html">Powrót do formularza dodawania wpisu</a>';
            return;
        }
        else{
            ?>
            <form action="wpis.php" method="POST">
                Do którego bloga chcesz dodać wpis?<br/>
                Lista Twoich blogów:<br/>
                <select name="blog">
                    <?php
                        foreach($possible as $blog) echo '<option value="'.$blog.'">'.$blog.'</option>';
                    ?>
                </select>
                <?php
                    echo '<input type="hidden" name="postvals" value="'.$collection.'" />';
                ?>
            </form>
            <?php
            $collection = unserialize($_POST['postvals']);
        }
        $path = 'Blogi/'.$_POST['blog'];
        $date = $collection['date'];
        echo $date;
        $time = $collection['time'];
        $filename = $date[2].$date[1].$date[0].$time[0].$time[1].date("s");
        while(file_exists($path.'/'.$filename.$uidstring)){
            $postsWithSameTime++;
            if($uid<10) $uidstring = '0'.$postsWithSameTime;
            else $uidstring = $postsWithSameTime;
        }
        $filename = $path.'/'.$filename.$uidstring;
        echo $fileName;
        $file = fopen($filename, "w");
        fwrite($info, $collection['userText']);
        fclose();
    }
    else{
        echo "Puste pola w formularzu";
        echo '<a href="zad2.html">Powrót do formularza dodawania wpisu></a>';
        return;
    }

?>

</body>
</html>