function createthumbnail($filetype, $origfile, $thumbfile, $new_w, $new_h) {
 
	global $settings;
 
	if ($filetype == 1) { $origimage = imagecreatefromgif($origfile); }
	elseif ($filetype == 2) { $origimage = imagecreatefromjpeg($origfile); }
	elseif ($filetype == 3) { $origimage = imagecreatefrompng($origfile); }
 
	$old_x = imagesx($origimage);
	$old_y = imagesy($origimage);
 
	$ratio_x = $old_x / $new_w;
	$ratio_y = $old_y / $new_h;
	if ($ratio_x > $ratio_y) {
		$thumb_w = round($old_x / $ratio_x);
		$thumb_h = round($old_y / $ratio_x);
	} else {
		$thumb_w = round($old_x / $ratio_y);
		$thumb_h = round($old_y / $ratio_y);
	};
 
	if ($settings['thumb_compression'] == "gd1") {
		$thumbimage = imagecreate($thumb_w,$thumb_h);
		$result = imagecopyresized($thumbimage, $origimage, 0, 0, 0, 0, $thumb_w, $thumb_h, $old_x, $old_y);
	} else {
		$thumbimage = imagecreatetruecolor($thumb_w,$thumb_h);
		if ($filetype == 3) {
			imagealphablending($thumbimage, false);
			imagesavealpha($thumbimage, true);
		}
		$result = imagecopyresampled($thumbimage, $origimage, 0, 0, 0, 0, $thumb_w, $thumb_h, $old_x, $old_y);
	}
 
	touch($thumbfile);
 
	if ($filetype == 1) { imagegif($thumbimage, $thumbfile); }
	elseif ($filetype == 2) { imagejpeg($thumbimage, $thumbfile); }
	elseif ($filetype == 3) { imagepng($thumbimage, $thumbfile); }
 
	imagedestroy($origimage);
	imagedestroy($thumbimage);
} 
Добавлено за 0.037 секунд, используя GeSHi 1.0.8.10

function createthumbcrop($filetype, $origfile, $thumbfile, $new_w, $new_h) {
 
	global $settings;
 
	if ($filetype == 1) { $origimage = imagecreatefromgif($origfile); }
	elseif ($filetype == 2) { $origimage = imagecreatefromjpeg($origfile); }
	elseif ($filetype == 3) { $origimage = imagecreatefrompng($origfile); }
 
	$old_x = imagesx($origimage);
	$old_y = imagesy($origimage);
 
	$ratio_x = $old_x / $new_w;
	$ratio_y = $old_y / $new_h;
	$crop_y = 0;
	$crop_x = 0;
 
	if ($ratio_x < $ratio_y) {
		$thumb_w = round($old_x / $ratio_x);
		$thumb_h = round($old_y / $ratio_x);
		$crop_y = ($old_y - ($new_h * $ratio_x))/2;
	} else {
		$thumb_w = round($old_x / $ratio_y);
		$thumb_h = round($old_y / $ratio_y);
		$crop_x = ($old_x - ($new_w * $ratio_y))/2;
	}
 
	if ($settings['thumb_compression'] == "gd1") {
		$thumbimage = imagecreate($new_w,$new_h);
		$result = imagecopyresized($thumbimage, $origimage, 0, 0, $crop_x, $crop_y, $thumb_w, $thumb_h, $old_x, $old_y);
	} else {
		$thumbimage = imagecreatetruecolor($new_w,$new_h);
		if ($filetype == 3) {
			imagealphablending($thumbimage, false);
			imagesavealpha($thumbimage, true);
		}
 
		$result = imagecopyresampled($thumbimage, $origimage, 0, 0, $crop_x, $crop_y, $thumb_w, $thumb_h, $old_x, $old_y);
	}
 
	touch($thumbfile);
 
	if ($filetype == 1) { imagegif($thumbimage, $thumbfile); }
	elseif ($filetype == 2) { imagejpeg($thumbimage, $thumbfile); }
	elseif ($filetype == 3) { imagepng($thumbimage, $thumbfile); }
 
	imagedestroy($origimage);
	imagedestroy($thumbimage);
}
Добавлено за 0.022 секунд, используя GeSHi 1.0.8.10