Basic outline of a wordpress plugin

example-plugin.php

<?php
class ExampleWordpressPlugin {
	const PLUGIN_NAME = 'example-plugin';
	const PLUGIN_VERSION = '0.01';

	/**
	 * The constructor of the class.
	 */
	public function __construct() {
		$this->hooks();
	}

	/**
	 * Include the required scripts / styles for the plugin.
	 */
	public function scripts_and_styles() {
		// Include the CSS
		wp_enqueue_style( self::PLUGIN_NAME . '-style',
			plugins_url( 'css/style.css', __FILE__ ), array(),
			self::PLUGIN_VERSION, 'all' );

		// Include the JavaScript
		wp_enqueue_script( self::PLUGIN_NAME . '-script',
			plugins_url( 'js/script.js' ), array( 'jquery' ),
			self::PLUGIN_VERSION, true );
	}

	/**
	 * Register hooks with WordPress to call the desired functions when
	 * required.
	 */
	public function hooks() {
		add_action( 'wp_enqueue_scripts',
			array( $this, 'scripts_and_styles' ) );
	}
}

new ExampleWordpressPlugin();