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<?php
trait FirstTrait
{
    public function firstMethod() {
        echo 'This is the firstMethod()' . PHP_EOL;
    }
}

trait SecondTrait
{

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<?php
interface FlyableThingInterface
{
    public function fly();
}

interface AnimalInterface
{
    public function eat();
}

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<?php
interface PersonInterface
{
    public function getFullname();
}

trait PersonTrait
{
    private $name;
    

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<?php
interface AccountInterface
{
    public function getBalance();
    public function increase($money);
    public function decrease($money);
}

trait AccountTrait
{

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<?php
// This is just an example FOR WORDPRESS USERS.
//
// To make this better:
//  * use namespace/class/closure etc.
//  * use autoloader
//  * create & use service provider classes
//  * create & use factory for WP_Query, WP_User etc.

// interface ContainerInterface

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WordPress: Best Practices

This is my best practices for WordPress but it is also the one FOR MOST OF THE WORDPRESSS DESIGNERS/DEVELOPERS. Some of these practices are useful to check code quality of themes/plugins.

Follow PSR

You may/should break away from WordPress Coding Standards and follow PSR if you are not a core/core-plugin developer (If you haven't followed either of WordPress Conding Standards or PSR, it is a bad habit) .

Why

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Sass Naming Convention

A Sass Naming Convention for Sass libraries.

ToC

• Basics
• Phrase and Compound Word
• Namespace
• Private Variable/Function/Mixin

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// ----
// Sass (v3.4.1)
// Compass (v1.0.1)
// ----

// A property map
$properties: (
  prop-1: "raw-prop-1-value",
  prop-2: "raw-prop-2-value"
);

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<div class="collection">
  <div class="collection__item">Item 1</div>
  <div class="collection__item">Item 2</div>
  <div class="collection__item">Item 3</div>
</div>

<ul class="collection">
  <li class="collection__item">Item 1</li>
  <li class="collection__item">Item 2</li>
  <li class="collection__item">Item 3</li>

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<a class="button" href="#">&lt;a&gt; button</a>
<button class="button">&lt;button&gt; button</button>