how to solve this error

the sent code have these errors

Warning: imagecreatefrompng(button.png) [function.imagecreatefrompng]: failed to open stream: No such file or directory in D:\xampp\htdocs\test\05.php on line 6

Warning: imagettfbbox() [function.imagettfbbox]: Invalid font filename in D:\xampp\htdocs\test\05.php on line 7

Warning: imagesx(): supplied argument is not a valid Image resource in D:\xampp\htdocs\test\05.php on line 12

Warning: imagesy(): supplied argument is not a valid Image resource in D:\xampp\htdocs\test\05.php on line 13

Warning: imagecolorallocate(): supplied argument is not a valid Image resource in D:\xampp\htdocs\test\05.php on line 16

Warning: imagettftext() expects parameter 1 to be resource, boolean given in D:\xampp\htdocs\test\05.php on line 17

Warning: Cannot modify header information - headers already sent by (output started at D:\xampp\htdocs\test\05.php:6) in D:\xampp\htdocs\test\05.php on line 20

Warning: imagepng(): supplied argument is not a valid Image resource in D:\xampp\htdocs\test\05.php on line 21

I think there is something disabled
please help me turn it on
<?php
 if (isset($_GET['message'])) {
   // load font and image, calculate width of text
   $font = 'times';
   $size = 12;
   $im = ImageCreateFromPNG('button.png');
   $tsize = imagettfbbox($size,0,$font,$_GET['message']);
 
   // center
   $dx = abs($tsize[2]-$tsize[0]);
   $dy = abs($tsize[5]-$tsize[3]);
   $x = ( imagesx($im) - $dx ) / 2;
   $y = ( imagesy($im) - $dy ) / 2 + $dy;
 
   // draw text
   $black = ImageColorAllocate($im,0,0,0);
   ImageTTFText($im, $size, 0, $x, $y, $black, $font, $_GET['message']);
 
   // return image
   header('Content-type: image/png');
   ImagePNG($im);
   exit;
 }
?>
<html>
  <head><title>Button Form</title></head>
  <body>
 
    <form action="<?= $PHP_SELF ?>" method="GET">
      Enter message to appear on button:
      <input type="text" name="message" /><br />
      <input type="submit" value="Create Button" />
    </form>
 
  </body>
</html>

Open in new window

hatem_from_mesrAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Ray PaseurCommented:
Run this script and look to see if you have GD enabled.
<?php phpinfo(); ?>

Open in new window

0
Ray PaseurCommented:
Then go look at your directories and find out why this button.png file is missing.  You may be looking at the wrong directory.  You can print out the contents of getcwd() to see what directory your script is looking in.

Not sure, but I think all the other errors are downstream issues caused by the failure of this command:
ImageCreateFromPNG('button.png');

HTH, ~Ray
0
termlimitCommented:
The button.png needs to be located in a place where the server is reading.  Typically this is passed in with a full path to the file not just a file name.

If you are trying to create it from scratch you can do the following to make that happen:

You need to make sure that the image has a valid resource before continuing.  If not you will get the above warnings that you see.
<?php
if( isset($_GET['message']) ) {
    // load font and image, calculate width of text
    $font = 'times';
    $size = 12;
    $im = ImageCreateFromPNG('button.png');
    if(!$im) {
        /* Create a blank image */
        $im  = imagecreatetruecolor(150, 30);
        $bgc = imagecolorallocate($im, 255, 255, 255);
        $tc  = imagecolorallocate($im, 0, 0, 0);
 
        imagefilledrectangle($im, 0, 0, 150, 30, $bgc);
    }
    $tsize = imagettfbbox($size,0,$font,$_GET['message']);
 
    // center
    $dx = abs($tsize[2]-$tsize[0]);
    $dy = abs($tsize[5]-$tsize[3]);
    $x = ( imagesx($im) - $dx ) / 2;
    $y = ( imagesy($im) - $dy ) / 2 + $dy;
 
    // draw text
    $black = ImageColorAllocate($im,0,0,0);
    ImageTTFText($im, $size, 0, $x, $y, $black, $font, $_GET['message']);
 
    // return image
    header('Content-type: image/png');
    ImagePNG($im);
    exit;
}
?>

Open in new window

0
C++ 11 Fundamentals

This course will introduce you to C++ 11 and teach you about syntax fundamentals.

hatem_from_mesrAuthor Commented:
Ray_Paseur,
>>>Run this script and look to see if you have GD enabled.
it's enabled
0
hatem_from_mesrAuthor Commented:
when I put the button.png file
there is those errors

Warning: imagettfbbox() [function.imagettfbbox]: Invalid font filename in D:\xampp\htdocs\test\05.php on line 7

Warning: imagettftext() [function.imagettftext]: Invalid font filename in D:\xampp\htdocs\test\05.php on line 17

Warning: Cannot modify header information - headers already sent by (output started at D:\xampp\htdocs\test\05.php:7) in D:\xampp\htdocs\test\05.php on line 20
0PNG  IHDR_Æâô`¬IDATX&J8± ¬ Q0.&¾®`iD<X©¯O¢×Bq¯"T?B¹6‘ôc=Á4¬N M.6¸{_çÆaH²JG[{vÆuÆuÆuÆuÆuÆuÆuÆuÆuÆuÆuÆuÆuÆuÆuÆuÆuÆuÆuH÷êS"b PM &û ¼w(/T8|;IEND®B`
0
Ray PaseurCommented:
So the warning indicates that there is something wrong with the contents of $_GET["message"] - it is not a font filename, apparently.
0
termlimitCommented:
"times" isn't a font.  Check the PHP docs for the proper way to use this.  'arial.ttf' is one example.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Ray PaseurCommented:
Man page here.  Font file name can be URL.
http://us2.php.net/manual/en/function.imagettfbbox.php
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
PHP

From novice to tech pro — start learning today.