note 106577 added to function.imagecreatetruecolor

Ola. Alguem pode me ajudar? (Someone can help me?) O meu codigo está dando erro nessa linha de codigo: (Have some error in my code line:) 52. <?php 53. header ("Content-type: image/png"); 54. $imagem = imagecreatetruecolor(50, 100); 55. $cor= imagecolorallocate($imagem, 233, 14, 91); O erro é: The error is:? Warning: Cannot modify header information - headers already sent by (output started at C:\AppServ\www\vaitrabalhar\imgt.php:7) in C:\AppServ\www\vaitrabalhar\imgt.php on line 53 Obrigado!! Thanks!! ---- Server IP: 187.73.33.10 Probable Submitter: 189.94.51.81 ---- Manual Page -- http://www.php.net/manual/en/function.imagecreatetruecolor.php Edit -- https://master.php.net/note/edit/106577 Del: integrated -- https://master.php.net/note/delete/106577/integrated Del: useless -- https://master.php.net/note/delete/106577/useless Del: bad code -- https://master.php.net/note/delete/106577/bad+code Del: spam -- https://master.php.net/note/delete/106577/spam Del: non-english -- https://master.php.net/note/delete/106577/non-english Del: in docs -- https://master.php.net/note/delete/106577/in+docs Del: other reasons-- https://master.php.net/note/delete/106577 Reject -- https://master.php.net/note/reject/106577 Search -- https://master.php.net/manage/user-notes.php