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Using the Symfony Installer is the only recommended way to create new Symfony applications. This installer is a PHP application that has to be installed in your system only once and then it can create any number of Symfony applications.

sage theme

The code repository: https://github.com/roots/sage

$_SERVER

$_SERVER is an array which holds information of headers, paths, script locations. Web server creates the entries in the array.

Draw diagram

This is a good tool: https://www.yworks.com/

nomenclature of templates

index.php: the initial page;
single.php: manage all display formats for individual post;
page.php: manage all display formatting for individual page;
home.php: manage all display formatting for home page. front-page.php can also be used;
archieve.php: manage all display formatting for post-listing page

wp admin

A class representing the admin screen

final class WP_Screen

network weathermap

使用require once函数加载其他目录的php文件；

使用标识符来代表一个功能是否开启；

使用new操作符创建一个ui的实例，随后执行modules check，随后使用change dir 内置函数改变目录，然后执行main方法，把全局特殊变量request作为参数；

all php 文件起到的是聚合和leader的作用，把其他需要的文件使用require once包含进去，这里面有一个阶梯include的问题；

URL shortener

The code repository is here: https://github.com/YOURLS/YOURLS

Search Solution

vendor services:

REST API for CodeIgniter framework

The code repository is here: https://github.com/chriskacerguis/codeigniter-restserver

post query

api是通过函数来提供的，具体的事情是由类来完成的，它们之间的纽带是global；

The backbone JavaScript in the media management

Use its view and template rendering

use statement

The ability to refer to an external fully qualified name with an alias, or importing, is an important feature of namespaces. This is similar to the ability of unix-based filesystems to create symbolic links to a file or to a directory.

Class autoload and theme parse

return eval('class ' . $classname . ' extends ' . PrestaShopAutoload::$class_aliases[$classname] . ' {}');

使用phpmyadmin导入大数据文件

设置upload的目录，从服务端的本地文件导入，这需要你有配置phpmyadmin的权限

The Closure class

Class used to represent anonymous functions.

Anonymous functions, implemented in PHP 5.3, yield objects of this type. This fact used to be considered an implementation detail, but it can now be relied upon. Starting with PHP 5.4, this class has methods that allow further control of the anonymous function after it has been created.

Besides the methods listed here, this class also has an __invoke method. This is for consistency with other classes that implement calling magic, as this method is not used for calling the function.

network weathermap command

use the list function to assign the array to variables: http://php.net/manual/en/function.list.php

query data

There are two ways to query data: query php object and db functions

wordpress language

The code repository:

1.https://github.com/lloc/Multisite-Language-Switcher

2.https://github.com/dskulski/wpml

3.https://github.com/nunomorgadinho/OpenWPML

namespace feature

Using the use statement, we can bring one class from another namespace, into the current namespace. Allowing us to instantiate it by name only. Now don’t ask me why it doesn’t need the backward slash prefix, because I just don’t know. This is the only exception that I know of. Sorry about that! You can prefix it with a slash if you want to though, you just don’t need to.

应用启动文件

在index文件中的基本逻辑是：加载boostrap文件，创建一个boostrap实例，生成一个http的application对象，然后把这个application对象跑起来。

nginx and php runtime

The PHP 5.2 version: http://www.cnblogs.com/mchina/archive/2012/05/17/2507102.html

install php from the source codes

download the source codes from php.net site
Install libxml2-devel and zlib-devel module via yum
run configure, make, make test and make install commands

Diving into Symfony

The Symfony application flow
Installing Symfony 2.1 by using Composer
The Symfony file structure and bundles
The console
Routes and controllers
Responses
Twig

How to use composer?

Here is one tutorial: http://code.tutsplus.com/tutorials/easy-package-management-with-composer--net-25530

template and template loader

The aim of the template loader is to find the template according the tag parsed in the query.

WP Theme

The Theme Customization API, added in WordPress 3.4, allows developers to customize and add controls to the "Appearance" → "Customize" admin screen. The Theme Customization screen (i.e. "Theme Customizer") allows site admins to tweak a theme's settings, color scheme or widgets, and see a preview of those changes in real time.