seigler/simple-php-buffer

PHP file for basic file-based output buffering

Usage

define('CACHE_PATH', sys_get_temp_dir().'/cache_'); // optional, cache-file location prefix
define('CACHE_TIME', 5 * 60); // optional, seconds to cache the output
require 'buffer.php';

This will send last-modified, expires, and etag headers. If a request includes etag and modified-since headers the script can intelligently return a 304 not modified.

This uses output buffering, but it can't buffer headers. If you need to send out a header every time, cached or not, put that header code above the require.

Header('Content-type: image/svg+xml; charset=utf-8');
Header('Content-Disposition: inline; filename="fancy-chart-' . date('Y-m-d\THisT') . '.svg"');
require 'buffer.php';

// remaining code to generate the chart

Credits

• Based on http://www.the-art-of-web.com/php/buffer/