[HELP!] genrating images on teh-fly

[r4nd0mch4r]

problem =(

echo '<td colspan="2" class="naslov">';
header("Content-type: image/jpeg"); 
$im = @ImageCreateFromJPEG ("img.jpg");
$color = ImageColorAllocate ($im, 0, 0, 0); 
ImageTTFText ($im, 48, 0, 5, 50, $color, "myriadpro-semibold.otf", $text); 
ImageJPEG($im);
echo '</td>';

this won't work... it gives me erorr about a header being already sent... but I can't generate the images before... (they're generating in a loop)

without the generation it would look like this:

echo '<td colspan="2"';
echo '<img src="x.jpg" alt ="x" />';
echo '</td>';

[weekender]

ok the basic idea when creating images this way is to create the image in it's own script, and call the script in an html <IMG...> tag

so you have the image script image.php (use $_GET to pass parameters)

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

$im = @ImageCreateFromJPEG ("img.jpg"); 
$color = ImageColorAllocate ($im, 0, 0, 0);  

ImageTTFText ($im, 48, 0, 5, 50, $color, "myriadpro-semibold.otf", $text);  

ImageJPEG($im);

then you have your table script table.php

echo '<td colspan="2" class="naslov">';
echo '<img src="image.php" alt="x">';
echo '</td>';

it doesn't matter that the html is fetching a .php file as an image - the content-header in the image script tells the browser that it's fetching a jpeg.

hope this helps

adam