Posted By

bts4 on 06/03/15

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Last Edited at 06/03/15 07:51am

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PHP image watermarker with file system cache

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Image Watermarker with file system cache

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<?php  
//ini_set('max_execution_time', 300);
header('content-type: image/jpeg');  
header('Cache-control: max-age='.(60*60*24*365));
header('Expires: '.gmdate(DATE_RFC1123,time()+60*60*24*365));
$cache_file = "./img/". hash('md5', $_GET['src']).".jpg";

if (file_exists($cache_file)) { //CACHE HIT
	header('Last-Modified: '.gmdate(DATE_RFC1123,filemtime($cache_file)));
	echo(file_get_contents($cache_file));

} else { //CACHE MISS

$watermark = imagecreatefrompng("watermarkd.png");  
	$watermark_width = imagesx($watermark);  
	$watermark_height = imagesy($watermark);
	$image = imagecreatetruecolor($watermark_width, $watermark_height);  
	$image = imagecreatefromjpeg($_GET['src']);  
	$size = getimagesize($_GET['src']); 
	$dest_x = $size[0] - $watermark_width - 5;  
	$dest_y = $size[1] - $watermark_height - 5;  
	imagecopy($image, $watermark, $dest_x, $dest_y, 0, 0, $watermark_width, $watermark_height);  
	imageinterlace($image, true);
	imagejpeg($image,$cache_file,100);   
	echo(file_get_contents($cache_file));
	imagedestroy($watermark);
	imagedestroy($image);
}
exit();
?>

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