GD, variables

[hi-liter]

I'm attempting to send parameters from a form to a page that utilizes GD to modify an image by adding the text posted from the form. Eventually the text will be drawn from a db, this is only preliminary.

I can't seem to get <br> or \n within my string.

Here is the code I've got so far:

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

$imgname = "calloutsample.jpg";

$fontSize = 2;
$imageWidth = 200;
$imageHeight = 80;
$distLeft = 218;
$distTop = 0;

$callout1 = stripslashes($POST['callout1']);
$callout2 = stripslashes($POST['callout2']);
$callout3 = stripslashes($POST['callout3']);
$callout4 = stripslashes($POST['callout4']);

$fudge = $callout1 . $callout2 . $callout3 . $callout4;

// callout image

$calloutimg = @imagecreatefromjpeg ($imgname);

$background_color = imagecolorallocate ($calloutimg, 255, 255, 255);
$textColor = imagecolorallocate ($calloutimg, 0, 51, 153);
imagestring ($calloutimg, $fontSize, $distLeft, $distTop, $fudge, $textColor);

imagejpeg ($calloutimg);
imagedestroy($calloutimg);

---

and this is my problem area:
$fudge = $callout1 . $callout2 . $callout3 . $callout4;

as i'd like $callout1 <BR> $callout2 <BR> $etc...

No luck yet. Any assistance is greatly appreciated.

Thanks.

[dnszero]

Why not just:

$fudge = "$callout1\n$callout2\n$callout3\n$callout4";

[hi-liter]

thanks dnszero, i should have mentioned that i tried two diff. ways, one of which is how you stated.

unfortunatly, and seemingly due to the fact that I'm dealing with GD here, it isn't working.

if i use: $fudge = "$callout1\n$callout2\n$callout3\n$callout4"; GD's image will be (assuming callout1 = one, callout2 = two etc):

one¥two¥three¥four

it has to be that the imagestring:
imagestring ($calloutimg, $fontSize, $distLeft, $distTop, $fudge, $textColor);

can't handle the "\n" in it???

got to be a way to do this though?

also, can't seem to create multiple GD images on the same page either.. anyone have any luck doing this?

so was thinking this would work BUT...having troubles. any help is greatly appreciated.

thx.

[hi-liter]

well i'm pretty much convinced that /n or any other way won't work with GD, at least how i'm attempting it.

but...or however... I did just now figure out that all i needed to do was seperate the imagestring - that is have one for each field in the form, and just position those accordingly w/in the image like this:

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

$imgname = "calloutsample.jpg";

$fontSize = 2;
$imageWidth = 200;
$imageHeight = 80;
$distLeft = 218;
$distTop = 0;

$callout1 = stripslashes($POST['callout1']);
$callout2 = stripslashes($POST['callout2']);
$callout3 = stripslashes($POST['callout3']);
$callout4 = stripslashes($POST['callout4']);

// callout image

$calloutimg = @imagecreatefromjpeg ($imgname);

$background_color = imagecolorallocate ($calloutimg, 255, 255, 255);
$textColor = imagecolorallocate ($calloutimg, 0, 51, 153);
imagestring ($calloutimg, $fontSize, $distLeft, $distTop, $callout1, $textColor);
imagestring ($calloutimg, $fontSize, $distLeft, 14, $callout2, $textColor);
imagestring ($calloutimg, $fontSize, $distLeft, 28, $callout3, $textColor);
imagestring ($calloutimg, $fontSize, $distLeft, 42, $callout4, $textColor);

imagejpeg ($calloutimg);
imagedestroy($calloutimg);

GD is pretty nifty.

[hi-liter]

best to use

imagecolorclosest with jpeg vs. imagecolorallocate otherwise the colors don't turn out right.

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

$imgname = "calloutsample.jpg";

$fontSize = 1;
$distLeft = 218;

$callout1 = stripslashes($POST['callout1']);
$callout2 = stripslashes($POST['callout2']);
$callout3 = stripslashes($POST['callout3']);
$callout4 = stripslashes($POST['callout4']);

// callout image

$calloutimg = @imagecreatefromjpeg ($imgname);

$textColor = imagecolorclosest ($calloutimg, 0, 51, 153);

imagestring ($calloutimg, $fontSize, $distLeft, 3, $callout1, $textColor);
imagestring ($calloutimg, $fontSize, $distLeft, 17, $callout2, $textColor);
imagestring ($calloutimg, $fontSize, $distLeft, 31, $callout3, $textColor);
imagestring ($calloutimg, $fontSize, $distLeft, 45, $callout4, $textColor);

imagejpeg ($calloutimg);
imagedestroy($calloutimg);