Warning: Cannot modify header information - headers already sent by...

[xue]

Hi, I am using the xamp installation. My GD library is enabled. But when i run this code in the GD tutorial, I encountered this problem with a warning like this:Warning: Cannot modify header information - headers already sent by...

 

My code is as follows:<?php

        header ("Content-type: image/png");

        $img_handle = ImageCreate (230, 20) or die ("Cannot Create image");

        $back_color = ImageColorAllocate ($img_handle, 0, 10, 10);

        $txt_color = ImageColorAllocate ($img_handle, 233, 114, 191);

        ImageString ($img_handle, 31, 5, 5,  "My first Program with GD", $txt_color);

        ImagePng ($img_handle);

    ?>

 

Can somebody tell me what is wrong?

 

[wildteen88]

Can you post the full error message you get. Also how are you using this code? Are you using it on its own or are you including this within a script somewhere?

[xue]

Thank you very much to reply me. My code works today...Damn weird