I have a dynamic image which uses GD to throw in some overlay images/text. This would be dynamicImage.php?firstName=Bob&lastName=Sacamano. I want to be prompted to download that file, so I created a download.php file to act as the middle-man:
//Get the Arguments
$file .= "firstName=".filter_var($_GET['firstName'], FILTER_SANITIZE_STRING);
$file .= "&lastName=".filter_var($_GET['lastName'], FILTER_SANITIZE_STRING);
//get The File Size
$size = intval(sprintf("%u", filesize($file)));
//Header Info to Prompt for Download and name it a .jpg
header('Content-Description: File Transfer');
header('Content-Type: application/octet-stream');
header("Content-disposition: attachment; filename=dynamicImage.jpg");
header("Content-Length: ".$size);
readfile($file, true);//.$file);
There's 2 problems, first I get this error:
PHP Warning: filesize() [<a href='function.filesize'>function.filesize</a>]: stat failed for dynamicImage.php?firstName=bob&lastName=Sacamano in /www/download.php on line 19
PHP Warning: readfile(dynamicImage.php?firstName=bob&lastName=Sacamano) [<a href='function.readfile'>function.readfile</a>]: failed to open stream: No such file or directory in /www/download.php on line 25
See how it parses the & to & ? But not only that. If I take out the arguments and just leave dynamicImage.php it prompts me to download the raw php file. Is there a way I can make it Run the PHP and then download the generated image? BTW My dynamicImage.php ends with:
header("Content-Type: image/JPEG");
ImageJpeg ($bg);
imagedestroy($bg);
Fixd. I altered my dynamicImage.php thusly:
if(isset($_GET['download'])){
header('Content-Description: File Transfer');
header('Content-Type: application/octet-image');
header("Content-disposition: attachment; filename=dynamicImage.jpg");
}else{
header("Content-Type: image/JPEG");
}
ImageJpeg ($bg);
imagedestroy($bg);
