I Need Help Fast!!

[djimenez]

Please help, i need to know if it is possible to add and image to an image which is being created by php....

I will be using the ImageCreateFromPNG tag to create an image, but I want to have that image load with a different image on top of it. Is this possible. Can anyone help me, I am working on a huge project and need to get this done today.

[Kudose]

You mean watermarking?

function watermark($src, $newname, $watermark, $quality) {
$imageInfo = getimagesize($src); 
$width = $imageInfo[0]; 
$height = $imageInfo[1]; 
$logoinfo = getimagesize($watermark);
$logowidth = $logoinfo[0];
$logoheight = $logoinfo[1];
$horizextra =$width - $logowidth;
$vertextra =$height - $logoheight;
$horizmargin =  round($horizextra / 2);
$vertmargin =  round($vertextra / 2);
$photoImage = ImageCreateFromJPEG($src);
ImageAlphaBlending($photoImage, true);
$logoImage = ImageCreateFromPNG($watermark);
$logoW = ImageSX($logoImage);
$logoH = ImageSY($logoImage);
ImageCopy($photoImage, $logoImage, $horizmargin, $vertmargin, 0, 0, $logoW, $logoH);
//ImageJPEG($photoImage); // output to browser
ImageJPEG($photoImage, $newname, $quality); 
ImageDestroy($photoImage);
ImageDestroy($logoImage);
}

//$src should be the source file
$src = $site_dir."/images/".$_FILES['userfile']['name'];

//$newname should be the desired output file
$newname = $src;

//$watermark should be the image to be overlayed
$watermark = $site_dir."/watermarks/Sample.png";

//run the function :: 4th parameter is quality
watermark($src, $newname, $watermark, 100);

You'll need to modify it for your needs, but it should definately get you on your way.

[djimenez]

I appreciate your help, and I will give this a try. I am not sure if this is exactly what I want but as long as it inserts an image over the base image then i am in good shape.

[Kudose]

It does. I just use it for watermarking, so that's why I called it that. 🙂

[djimenez]

ok, here is my code:

<?
$id = ImageCreateFromPNG("images/rsc_flyer1.png");
$black = ImageColorAllocate($id, 0, 0, 0);
$red = ImageColorAllocate($id, 208, 52, 71);
$font = 'arial';
$filename= sprintf("%s_flyer.png", $flyername);
Imagettftext($id, 18, 0, 32, 192, $red, $font, $headline);
Imagettftext($id, 13, 0, 32, 210, $black, $font, $subhead);
Imagettftext($id, 11, 0, 38, 535, $black, $font, $bodycopy);
ImagePNG($id,"createdimages/$filename");
?>

<?
function watermark($src, $newname, $watermark, $quality) {
$imageInfo = getimagesize($src);
$width = $imageInfo[0];
$height = $imageInfo[1];
$logowidth = $logoinfo[0];
$logoheight = $logoinfo[1];
$horizextra =$width - $logowidth;
$vertextra =$height - $logoheight;
$horizmargin = round($horizextra / 2);
$vertmargin = round($vertextra / 2);
$photoImage = ImageCreateFromGIF($src);
ImageAlphaBlending($photoImage, true);
//ImageGIF($photoImage); // output to browser
ImageGIF($photoImage, $newname, $quality);
}

//$src should be the source file
$src = "images/logo.gif";

//$newname should be the desired output file
$newname = $src;

//$watermark should be the image to be overlayed
$watermark = $src."images/logo.gif";

//run the function :: 4th parameter is quality
watermark($src, $newname, $watermark, 100);
?>

the first block of php is creating an image and the second is attempting to lay an image on top of that. It seems that the php is working but the image iis still not showing up. Any ideas?

[Kudose]

You need to specify the full paths to the directories you are trying to read or write to.

Also, by using this code:

//$src should be the source file
$src = "images/logo.gif";

//$newname should be the desired output file
$newname = $src;

//$watermark should be the image to be overlayed
$watermark = $src."images/logo.gif"; 

By the time you get to $watermark, it is

$watermark = "images/logo.gifimages/logo.gif";

As you can see that's no good.

You need:

//$src should be the source file
$src = "home/user/public_html/images/logo.gif";

//$newname should be the desired output file
$newname = $src;

//$watermark should be the image to be overlayed
$watermark = "/home/user/public_html/images/logo.gif"; 

On a thrid note, which may be the killer, you can not use GD functions on GIF images. They just aren't supported.

[Kudose]

One more thing, in your code you're overlaying logo.gif with logo.gif.

How could you tell it didn't work? Other than the errors of course.

[djimenez]

what i am trying to do is put logo.gif/png on top of the rsc_flyer.png file, am i doing this wrong.

btw, i appreciate your help i have only been coding php for a week and am still figuring it out.

[Kudose]

in $src change the path and image to rsc_flyer.png, and for $watermark change it to the path and logo.png

ie.

$src = "/home/usr/path/rsc_flyer.png";

etc...

[djimenez]

OK, here is the modified code, I am not getting any errors, but the file is still not generating with the logo on top of
it.

<?
$id = ImageCreateFromPNG("images/rsc_flyer1.png");
$black = ImageColorAllocate($id, 0, 0, 0);
$red = ImageColorAllocate($id, 208, 52, 71);
$font = 'arial';
$filename= sprintf("%s_flyer.png", $flyername);
Imagettftext($id, 18, 0, 32, 192, $red, $font, $headline);
Imagettftext($id, 13, 0, 32, 210, $black, $font, $subhead);
Imagettftext($id, 11, 0, 38, 535, $black, $font, $bodycopy);
ImagePNG($id,"createdimages/$filename");

function watermark($src, $newname, $watermark, $quality) {
$imageInfo = getimagesize($src);
$width = $imageInfo[0];
$height = $imageInfo[1];
$logowidth = $logoinfo[0];
$logoheight = $logoinfo[1];
$horizextra =$width - $logowidth;
$vertextra =$height - $logoheight;
$horizmargin = round($horizextra / 2);
$vertmargin = round($vertextra / 2);
$photoImage = ImageCreateFromPNG($src);
ImageAlphaBlending($photoImage, true);
//ImagePNG($photoImage); // output to browser
ImagePNG($photoImage, $newname, $quality);
}

//$src should be the source file
$src = "createdimages/$filename";

//$newname should be the desired output file
$newname = $src;

//$watermark should be the image to be overlayed
$watermark = "images/logo.png";

//run the function :: 4th parameter is quality
watermark($src, $newname, $watermark, 100);
?>

[Kudose]

Ok....

Do you know what the full path is to your directory on the server?

It should be something like:

/home/USERNAME/public_html/

USERNAME = the username you use to login to the server.

Now, you need to apply that, to the $src and $watermark paths.

Again, in example:

$watermark = "/home/USERNAME/public_html/images/logo.png"; 

[djimenez]

I am working on a local server on my pc. I can see the images and those paths I have listed work well in other cases in testing images. In fact, the rsc_flyer.png shows up but the logo.png isnt.

[Kudose]

Ok. If there are no errors, than the only thing I can come up with is that the path's aren't correct.

Do you have error reporting turn to all?

[djimenez]

yeah i can see all of my errors, i am not sure what is going wrong but i have a good base to start on, i think i will just keep playing with this until i get it right. php can be very frustrating when you dont know what you are doing 😃 I bought a book on php last night so I will be going over it tonight.

[djimenez]

ok, if you are still available. how do i set the x and y coordinates for the image i want to place?