An error occurred while drawing the text program in PHP. how can this problem be solved?

An error occurred while drawing the PHP text program. The code for solving the problem is as follows: & lt ;? Php & nbsp; $ im = imagecreatetruecolor (255,255,255, 30); $ white = imagecolorallocate ($ im,); $ gray = imagecolor PHP: An error occurred while plotting the text program.
The program code is as follows:
$ Im = imagecreatetruecolor (400,30 );
$ White = imagecolorallocate ($ im, 255,255,255 );
$ Gray = imagecolorallocate ($ im, 128,128,128 );
$ Black = imagecolorallocate ($ im, 0, 0 );
Imagefilledrectangle ($ im, 0,0, 399,29, $ white );
$ Text = iconv ("GB2312", "UTF-8", "PHP draw text program"); // if there is a Chinese output, you need to transcode it, the string converted to the UTF-8 can be passed directly
$ Font = 'simsun. ttc ';
Imagettftext ($ im, 20, 0, 12, 21, $ gray, $ font, $ text); // output a gray string as the Shadow
Imagettftext ($ im, 20, 0, 10, 20, $ black, $ font, $ text); // output a black string on the shadow.
Header ('content-type: image/png ');
Imagepng ($ im );
Imagedestroy ($ im );
?>
The browser displays the following:

What's wrong with this?

------ Solution --------------------
Didn't he tell you clearly that the font file couldn't be found?

$ Font = 'simsun. ttc '; // Copy simsun. ttc to the current directory.
Test writing
$ Font = 'C:/windws/fonts/simsun. ttc ';
You can.
------ Solution --------------------
The fonts folder is different from other folders. you can see the font name and not the file name. you can see it only when you view the attributes.
Simsun. ttc is &