Draw Diagonal Lines For Watermark

[griffo]

Ok, what I'm trying to do is draw 2 diagonal lines underneath a transparent .PNG that is put over an image. I've been searching all over the place on how to do it but I have had no luck 😕 .

This is the code I have been trying to work from.

<?php

#####################################################
# originally gleaned from
# http://www.fedeblog.com.ar/files/view.php?i=Watermark/watermark.php
# Modified by Liem Bahneman ([e-mail]) with some 
# path enhancements when called to handled subdirectories


#####################################################
# Okay to edit these

# what is the root of your files?
$basedir="*******";
$watermarkimage="watermark.png";

#####################################################
# end user modifiable stuff...

$file=basename($_GET['i']);
$path=($_GET['p']);

$image = $basedir."/".$path."/".$file;
$watermark = $basedir."/".$watermarkimage;

$im = imagecreatefrompng($watermark);

$ext = substr($image, -3);

if (strtolower($ext) == "gif") {
    if (!$im2 = imagecreatefromgif($image)) {
        echo "Error opening $image!"; exit;
    }
} else if(strtolower($ext) == "jpg") {
    if (!$im2 = imagecreatefromjpeg($image)) {
        echo "Error opening $image!"; exit;
    }
} else if(strtolower($ext) == "png") {
    if (!$im2 = imagecreatefrompng($image)) {
        echo "Error opening $image!"; exit;
    }
} else {
    die;
}

imagecopy($im2, $im, (imagesx($im2)/2)-(imagesx($im)/2), (imagesy($im2)/2)-(imagesy($im)/2), 0, 0, imagesx($im), imagesy($im));

if($_GET[repeat]) {
    $waterless = imagesx($im2) - imagesx($im);
    $rest = ceil($waterless/imagesx($im)/2);

for($n=1; $n<=$rest; $n++) {
    imagecopy($im2, $im, ((imagesx($im2)/2)-(imagesx($im)/2))-(imagesx($im)*$n), (imagesy($im2)/2)-(imagesy($im)/2), 0, 0, imagesx($im), imagesy($im));
    imagecopy($im2, $im, ((imagesx($im2)/2)-(imagesx($im)/2))+(imagesx($im)*$n), (imagesy($im2)/2)-(imagesy($im)/2), 0, 0, imagesx($im), imagesy($im));
}
}

$last_modified = gmdate('D, d M Y H:i:s T', filemtime ($image));

header("Last-Modified: $last_modified");
header("Content-Type: image/jpeg");

imagejpeg($im2,NULL,95);

imagedestroy($im);
imagedestroy($im2);

?> 

I have tried adding...

$background_color = ImageColorAllocate ($im2, 234, 234, 234);
imageline ($im2,$x1,$y1,$x2,$y2,$background_color);

right before...

imagejpeg($im2,NULL,95);

but, it just says... the image is not valid and cannot be displayed.

any ideas? :o

[Weedpacket]

Take out this line

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

And see what you get; it's probably an error message - and since an error message isn't a valid JPEG image it can't be displayed as one.