Image Watermark Text problem

[alexsmith2709]

Hi,

I have some code to put a text watermark on an image (using imagettftext). The code i have works in a php file on its own but when i add it to my existing page i get problems.

Firstly i had a problem with the "headers already sent..." problem but that was because i had header('Content-type: image/jpg'); with the rest of my code.

 

Now i have moved "header('Content-type: image/jpg');" to the beginning of my html file and the rest of the PHP code where i want the image on my page. Now i dont get any image displayed.

 

The code im using is:

<?php
//load image
$im = imagecreatefromjpeg('C11ABX.jpg');

//figure out where to put the text
$imagesize = getimagesize('C11ABX.jpg');
$x_offset = 50;
$y_offset = $imagesize[1] - 20;

//text color
$textcolor = imagecolorallocate($im, 0xFF, 0xFF, 0xFF);

//set font
$font = 'detaranto.ttf';

//set size
$size = '20';

//set angle
$angle = '45';

//set text
$text = 'SAMPLE';

imagettftext ($im ,$size ,$angle ,$x_offset ,$y_offset ,$textcolor ,$font ,$text );

//output watermarked image
imagejpeg($im);
?>

 

Any help would be great.

 

Thanks

[Alex]

The code i have works in a php file on its own but when i add it to my existing page i get problems.

That's how it works. You have it in a separate file, and then you use that php file as you would any other image resource:

 

<img src="thatphpfile.php" alt="..." />

[dzelenika]

I think there's an error happening on server.

Open error log to see which error.

[alexsmith2709]

Oh ok, thanks very much. That works.

Eventually I would like to watermark each image in a certain folder (the photos im putting on the site) so i dont really want lots of PHP files if neccessary.

 

Also to do that i'd like to know how to use this code (or something similar) to use this code to put a watermark on each image instead of just stating each filename.

 

Im guessing i would need something like <img src="image.php?imagename"> or something like that once i have the code to get all images.

 

Thanks

[Alex]

Yeah, pretty much. Something like:

 

url: image.php?file=someimage.jpg

 

Then use $_GET['file'] to know what file to load.

 

Don't forget to sanitize that input.

[alexsmith2709]

Thanks,

However after not playing with PHP for a while im having a complete mental block.

How do i get the image names?

Sorry, just cant seem to think of what to do!

 

Thanks

[alexsmith2709]

I've figured it out now.

 

Thanks for all the help