[PHP] pobierz, plaintext 
$_POST['a']= rand(3,10);
echo '<form action="" method="post">
<input type="hidden" value="'.$_POST['a'].'" name="wartosc" />
<input type="submit" value="przycisk" />
</form>'.$_POST['a'].'';
[PHP] pobierz, plaintext 

[PHP] pobierz, plaintext 
if(isset($_POST['submit']))
{
 
	echo rand(3, 10);
}
 
echo '<form action="" method="post">
<input type="submit" name="submit" value="przycisk" />
</form>';
[PHP] pobierz, plaintext 

[PHP] pobierz, plaintext 
    $_POST['a']= rand(3,10);
    echo '<form action="" method="post">
    <input type="hidden" value="" name="wartosc" />
    <input type="submit" value="przycisk" />
    </form>'.$_POST['a'].'';
[PHP] pobierz, plaintext