Abed Halawi Mulkave

Nginx FastCGI response buffer sizes

By default when Nginx starts receiving a response from a FastCGI backend (such as PHP-FPM) it will buffer the response in memory before delivering it to the client. Any response larger than the set buffer size is saved to a temporary file on disk. This process is also explained at the Nginx ngx_http_fastcgi_module page document page.

Since disk is slow and memory is fast the aim is to get as many FastCGI responses passing through memory only. On the flip side we don't want to set an excessively large buffer as they are created and sized on a per request basis (it's not shared).

The related Nginx options are:

fastcgi_buffering appeared in Nginx 1.5.6 (1.6.0 stable) and can be used to turn buffering completely on/off. It's on by default.
[fastcgi_buffer_size](http://nginx.org/en/docs/http/ngx_ht

Share Counts

I have always struggled with getting all the various share buttons from Facebook, Twitter, Google Plus, Pinterest, etc to align correctly and to not look like a tacky explosion of buttons. Seeing a number of sites rolling their own share buttons with counts, for example The Next Web I decided to look into the various APIs on how to simply return the share count.

If you want to roll up all of these into a single jQuery plugin check out Sharrre

Many of these API calls and methods are undocumented, so anticipate that they will change in the future. Also, if you are planning on rolling these out across a site I would recommend creating a simple endpoint that periodically caches results from all of the APIs so that you are not overloading the services will requests.

Twitter

	<?php
	// @see http://php.net/manual/en/function.uniqid.php
	function v4() {
	return sprintf('%04x%04x-%04x-%04x-%04x-%04x%04x%04x',

	// 32 bits for "time_low"
	mt_rand(0, 0xffff), mt_rand(0, 0xffff),

	// 16 bits for "time_mid"
	mt_rand(0, 0xffff),

	<?php

	function allCombinationsForPossibilities(array $possibilities)
	{
	// initialize by adding the empty set
	$results = array(array( ));

	foreach ($possibilities as $element) {
	foreach ($results as $combination) {
	$results[] = array_merge(array($element), $combination);

	<?php

	// http://stackoverflow.com/a/8567199/1542779

	function combinations($arrays, $i = 0) {
	if (!isset($arrays[$i])) {
	return array();
	}
	if ($i == count($arrays) - 1) {
	return $arrays[$i];

	// Courtesy of http://php.net/manual/en/function.parse-url.php#114817

	/**
	* UTF-8 aware parse_url() replacement.
	*
	* @return array
	*/
	function mb_parse_url($url)
	{
	$enc_url = preg_replace_callback(

	-- gets all fields from a hash as a dictionary
	local hgetall = function (key)
	local bulk = redis.call('HGETALL', key)
	local result = {}
	local nextkey
	for i, v in ipairs(bulk) do
	if i % 2 == 1 then
	nextkey = v
	else
	result[nextkey] = v

	# A class-based template for jQuery plugins in Coffeescript
	#
	# $('.target').myPlugin({ paramA: 'not-foo' });
	# $('.target').myPlugin('myMethod', 'Hello, world');
	#
	# Check out Alan Hogan's original jQuery plugin template:
	# https://github.com/alanhogan/Coffeescript-jQuery-Plugin-Template
	#
	(($, window) ->

	{
	"auto_complete": true,
	"caret_style": "phase",
	"ensure_newline_at_eof_on_save": true,
	"file_exclude_patterns":
	[
	"vendor/*",
	"node_modules/*",
	"!vendor/*.coffee",
	"!vendor/*.js"

	set nocompatible " be iMproved, required
	filetype off " required

	" set the runtime path to include Vundle and initialize
	set rtp+=~/.vim/bundle/Vundle.vim
	call vundle#begin()
	" alternatively, pass a path where Vundle should install plugins
	"call vundle#begin('~/some/path/here')

	" let Vundle manage Vundle, required