General

Object-oriented Programming

Functional Programming

Meta Programming

are a way of encapsulating items

When both libraries are used in the same namespace, they collide and cause trouble => Namespaces solve this problem

Code style: PSR-4 (or PSR-0)

Namespaces + autoloader

Composer installs packages in separate project that mean only in project scope, NOT global packages.

PEAR installs packages globally, which means after installing them once they are available to all projects on that server.

UTF-8 at the PHP level

UTF-8 at the Database level

UTF-8 at the browser level

Installation

Structure

Dependency injection is a software design pattern that allows the removal of hard-coded dependencies and makes it possible to change them, whether at run-time or compile-time

Inversion of Control

S.O.L.I.D

aid init lower module

{ mysql } has superseded by { mysqli, PDO }

{ mysql } officially removed in PHP 7.0.

A database connection abstraction library

Built into PHP since 5.1.0

Provides a common interface to talk with many different databases.

Use OOP to create a model - similar to MVC

Some abstraction layers have been built using the PSR-0 or PSR-4 namespace standards

Open source

is clear separation they create between the presentation logic and the rest of your application.

Templates have the sole responsibility of displaying formatted content

Templates are not responsible for data lookup, persistence or other more complex tasks.

Improve the organization of presentation code

are simply templates that use native PHP code

can combine PHP code within other code, like HTML

Error Severity

Changing PHP’s Error Reporting Behaviour

Inline Error Suppression

More information on this and details on how to use ErrorException with error handling can be found at ErrorException Class.

Definition

Doc for class

Inside the class

Micro Frameworks

Full-Stack Frameworks

Component Frameworks