Using image create function

Question

I'm using Creating image function to create an image with exact text message using the following code

<?PHP
header ("Content-type: image/gif");
$image=imagecreatefromgif("myimage.gif"); // will be background img
$black = imagecolorallocate($image, 0,0,0);
$message = "Hello Egypt";
imagestring($image, 4, 25, 10, $message, $black);
imagegif($image);
imagedestroy($image);
?>

The output should be like this

Hello Egypt

Now my question is there any way i can write image over it not only text so that if i've flag image at same path (flag.gif Flag ) and i would like to write it just after my $message to be like this

Hello Egypt Flag

so is this possible and how could be ! ~ thanks a lot

Update based on @MarcB idea of using imagecopy function

<?PHP
header ("Content-type: image/gif");
$image=imagecreatefromgif("myimage.gif"); // will be background img


$src = imagecreatefromjpeg('flag.jpg');// new image will add
imagecopy($image, $src, 120, 10, 0, 0, 32, 20);

$black = imagecolorallocate($image, 0,0,0);
$message = "Hello Egypt";
imagestring($image, 4, 25, 10, $message, $black);

imagegif($image);
imagedestroy($image);
?>

the output is not true color WHY :(

enter image description here

ANY help about this new problem ~ thanks

thanks never knew about imagecopy before but i'll try to combine both code hope it works ~ thanks a lot — Reham Fahmy
– Reham Fahmy, Commented Jun 12, 2012 at 21:54
@MarcB i've updated the code please view it ! why i'm getting it not true color ! — Reham Fahmy
– Reham Fahmy, Commented Jun 12, 2012 at 22:19
Since the image is a .gif, the colors you need may not be in the gif palette. Can you make it a .jpg file instead? — Surreal Dreams
– Surreal Dreams, Commented Jun 12, 2012 at 22:20
@SurrealDreams thanks a lot that was very helpful too , i've changed to .jpg and replaced imagecreatefromgif to imagecreatefromjpeg and it works perfect ~ thanks — Reham Fahmy
– Reham Fahmy, Commented Jun 12, 2012 at 22:27

Cole Tobin · Accepted Answer · 2012-06-13 02:27:25Z

4

With the help of Surreal Dreams and Marc B This one works fine

<?PHP
header ("Content-type: image/gif");

$image=imagecreatefromjpeg("myimage.jpg"); // will be background img

$src = imagecreatefromjpeg('flag.jpg');// new image will add

imagecopy($image, $src, 120, 10, 0, 0, 32, 20);


$black = imagecolorallocate($image, 0,0,0);
$message = "Hello Egypt";

imagestring($image, 4, 25, 10, $message, $black);
imagegif($image);
imagedestroy($image);
?>

Output

enter image description here

I've should have learned the following functions

edited Jun 13, 2012 at 2:27

Cole Tobin

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answered Jun 12, 2012 at 22:34

Reham Fahmy

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1 Comment

Surreal Dreams Over a year ago

If this is the solution, don't forget to accept it. It's OK to accept your own solution as long as it the one that works best.

PleaseStand · Accepted Answer · 2012-06-12 22:50:25Z

1

imagecopy() should properly deal with differences between images' palettes; however, the GIF format does not support more than 256 colors, and neither does GD when it works with palette-based images. If 256 palette entries already exist when GD tries to use a new color, GD will pick the closest match, which can produce the results you see.

To avoid this problem, you should use imagecreatetruecolor() to create a 24-bit true-color image in memory. You can then use imagecopy() to insert each GIF image (including the background) and imagepng() to generate PNG output, which is better for line art than JPEG, offers better compression than GIF, and can support more than 256 colors.

answered Jun 12, 2012 at 22:50

PleaseStand

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