比赛生成器PHP

Question

I found this package and I am trying to run the example and the show the bracket.

But it outputs some weird characters:

�PNG  IHDR�Ht�4PLTE���U��~�IDATx����o�V��GIW&q�*�=ު`B�&��?�?!R*Mv� 

You get the point.

I am thinking that it's because:

// If GD-lib is installed, the below code will draw the bracket of the knock-out      tournament.
if ($GDLIB_INSTALLED) {
$im = $KO->getImage("Tournament name here");
header('Content-type: image/png');
imagepng($im);
imagedestroy($im);
}

But I dont know how to fix it....

Thanks, Ara

EDIT:

So I changed the code a bit after what gat said.

In my controller, I got: public function getTest(){

    // Depending on whether or not GD-lib is installed this example file will output differently.
    $GDLIB_INSTALLED = (function_exists("gd_info")) ? true : false;


    // Lets create a knock-out tournament between some of our dear physicists.
    $competitors = array(
        'Paul A.M. Dirac', 
        'Hans Christian Oersted', 
        'Murray Gell-Mann', 
        'Marie Curie', 
        'Neils Bohr', 
        'Richard P. Feynman', 
        'Max Planck');

    // Create initial tournament bracket.
    $KO = new TournamentGeneratorGD($competitors);
    $KO->setResByMatch(1, 1, 4, 0);


    if($GDLIB_INSTALLED){
        $im = $KO->getImage("Tournament name here");
        return View::make('test_img')
                    ->with('im', $im);
    }
    else
        return View::make('home');
}

And in my test_img.php page, I got this:

<?php   
header('Content-type: image/png');
imagepng($im);
imagedestroy($im);
?>

It doesnt work anyway..

Answer 1

header('Content-type: image/png'); should be the first thing you say before outputting anything else.

Try moving the following code to a different source file (img.php or something).

header('Content-type: image/png');
$im = $KO->getImage("Tournament name here");
imagepng($im);
imagedestroy($im);

You may then redirect the page to img.php in your if ($GDLIB_INSTALLED) block.