nikic

Why objects (usually) use less memory than arrays in PHP

This is just a small post in response to [this tweet][tweet] by Julien Pauli (who by the way is the release manager for PHP 5.5). In the tweet he claims that objects use more memory than arrays in PHP. Even though it can be like that, it's not true in most cases. (Note: This only applies to PHP 5.4 or newer.)

The reason why it's easy to assume that objects are larger than arrays is because objects can be seen as an array of properties and a bit of additional information (like the class it belongs to). And as array + additional info > array it obviously follows that objects are larger. The thing is that in most cases PHP can optimize the array part of it away. So how does that work?

The key here is that objects usually have a predefined set of keys, whereas arrays don't:

messified

PHP Developer Interview: What you should know

1. What’s the difference between " self " and " this " ?

Use $this to refer to the current object. Use self to refer to the current class. In other words, use $this->member for non-static members, use self::$member for static members.

Source: When to use self vs this -stackoverflow

dmitshur

WARNING: If you're reading this in 2021 or later, you're likely better served by reading:

• https://go.dev/cmd/go#hdr-Configuration_for_downloading_non_public_code
• https://go.dev/ref/mod#private-modules

(This gist was created in 2013 and targeted the legacy GOPATH mode.)

$ ssh -A vm
$ git config --global url."[email protected]:".insteadOf "https://github.com/"

rxaviers

People

:bowtie:	😄 :smile:	😆 :laughing:
😊 :blush:	😃 :smiley:	☺️ :relaxed:
😏 :smirk:	😍 :heart_eyes:	😘 :kissing_heart:
😚 :kissing_closed_eyes:	😳 :flushed:	😌 :relieved:
😆 :satisfied:	😁 :grin:	😉 :wink:
😜 :stuck_out_tongue_winking_eye:	😝 :stuck_out_tongue_closed_eyes:	😀 :grinning:
😗 :kissing:	😙 :kissing_smiling_eyes:	😛 :stuck_out_tongue:

Cilyan

#!/usr/bin/env python
# -*- coding: utf-8 -*-
#  
#  Copyright 2014 Cilyan Olowen <[email protected]>
# 
#  Redistribution and use in source and binary forms, with or without
#  modification, are permitted provided that the following conditions are
#  met:
#  
#  * Redistributions of source code must retain the above copyright

kachayev

Channels Are Not Enough

... or Why Pipelining Is Not That Easy

Golang Concurrency Patterns for brave and smart.

By @kachayev

Intro

guweigang

<?php
/**
 * 微信PHP-SDK
 * 服务器端必须要有 CURL 支持
 * 2015年7月修正版本
 * @author 、小陈叔叔 <[email protected]>
 * https://coding.net/u/cjango/p/wechat_sdk/git
 * 7月10日，完善红包功能，
 */
namespace Tools;

karenyyng

Table Of Content

Skip to the relevant sections if needed.

• 2-min tutorial to do it the quick-and-dirty-way
• Concepts for resolving Git conflicts
• Setting up different editors / tool for using git mergetool
  • Finding out what mergetool editors are supported
• mergetool simple code example for vimdiff
  • Resolving conflict from a Git pull
• Other great references and tutorials

sylt

// I had problems getting mouse movement events working in ncurses, but after
// some research, it seems as if this is how you can do it. The magic is in the
// printf("\033[?1003h\n") which was the missing piece in the puzzle for me
// (see console_codes(4) for more information). 1003 means here that all events
// (even position updates) will be reported.
//
// This seems to work in at least three X-based terminals that I've tested:
// xterm, urxvt and gnome-terminal. It doesn't work when testing in a "normal"
// terminal, with GPM enabled. Perhaps something for the next gist version? :)

fyrebase

Php-FPM

Php fpm is the new way to setup php to run with your webserver. Php-fpm is a fastcgi process manager for php that is totally separate from the webserver. The webserver communicates with fpm through a socket and passes the name of the script to execute. So fpm can run with any web server that is fastcgi compatible.

I recently moved from my old shared hosting to linode. Linode provides linux vps hosting at economic prices. However the servers are totally unmanaged are just raw linux machines that have shell access. So through the shell you have to setup everything including the web server, php and the web files.

So this time I decided to go with the combination of nginx and php-fpm. I had multiple sites to setup on this new webserver. Nginx deals with these through separate server blocks (aka vhost in apache). However there was another thing needed. Php on each site should run with its own user and not the nginx common user named www-data.

Running each site with its own uid/gid is more secure and