Image jpeg displayed like text.

rubio

I´m using two joined classes in my apli. First of then cath a column of a mysql table, and the second show their values in a line chart image. This second one works fine alone, but i get this result in my browser when i use it with the first one:
Warning: Cannot add header information - headers already sent by (output started at c:\apache\htdocs\test\test.php:7) in c:\apache\htdocs\test\Linechart.php on line 30
ÿØÿàJFIFÿþ:CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), quality = 0 ÿÛCÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ

ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÛC

The image is not displayed, but it's shown like text. 😕

Now, i´ve discovered, i can make a .jpeg file correctly, but still getting my apli don´t show any header warning, the image is shown in text code if i try to display the chart directly.
Can anybody help me please??? 🙁
Thanks.

abnfire

can i c your code, so i can c whats going on?

rubio

I´ve got 3 class in my apli and some files more, i think it´s too much big to upload it.
Got any clue how could i solve this error? 🙁
Thanks.

michael

Edit line 7 of test.php, or use ob_start to fix the headers problem.
Change your quality setting to at least 30, preferably 70. 0 is an unacceptable image quality. (This is not like PSP, PHP GD uses % of perfection, as such 100 is the best quality, and yours is set to 0.)
Tell the computer you are going to send them a jpeg. If it's inline, use img src. If it's the only content being sent out, use: Header('Content-type: image/jpeg');

Hope this helps. You need to check php.net. Most of your questions are answered there.