OOP Settigns Page Full

oop-settings-page-full.php

<?php
/**
 * Facebook Conversion Pixel Options
 * @version 1.0
 */
class Fb_Pxl_Admin {
 
 	/**
 	 * Option key, and option page slug
 	 * @var string
 	 */
	protected static $key = 'fb_pxl_options';
 
	/**
	 * Array of metaboxes/fields
	 * @var array
	 */
	protected static $fb_pxl_options = array( 'posts' => '' );
 
	/**
	 * Options Page title
	 * @var string
	 */
	protected $title = '';
 
	/**
	 * Constructor
	 * @since 0.1.0
	 */
	public function __construct() {
		// Set our title
		$this->title = __( 'Facebook Conversion Pixel', 'myprefix' );
 	}
 
	/**
	 * Initiate our hooks
	 * @since 0.1.0
	 */
	public function hooks() {
		add_action( 'admin_init', array( $this, 'init' ) );
		add_action( 'admin_menu', array( $this, 'add_options_page' ) );
	}
 
	/**
	 * Register setting to WP
	 * @since  0.1.0
	 */
	public function init() {
		register_setting( self::$key, self::$key );
	}
 
	/**
	 * Add menu options page
	 * @since 0.1.0
	 */
	public function add_options_page() {
		$this->options_page = add_options_page( $this->title, $this->title, 'manage_options', self::$key, array( $this, 'admin_page_display' ) );
	}
 
	/**
	 * Admin page markup
	 * @since  0.1.0
	 */
	public function admin_page_display() {

		self::admin_page_setup();

		?>
		<div class="wrap cmb_options_page <?php echo self::$key; ?>">
			<h2><?php echo esc_html( get_admin_page_title() ) . ' Settings'; ?></h2>
		    <form method="post" action="options.php">
		    	<?php settings_fields( self::$key ); ?>
		    	<?php do_settings_sections( self::$key ); ?>
		    	<?php submit_button(); ?>
			</form>
		</div>
		<?php
	}

	/**
	 * Defines the plugin option page sections and fields
	 * @since  0.1.0
	 * @return array
	 */
	public static function admin_page_setup() {

		add_settings_section(
		    'fb_pxl_display_on',
		    'Display Facebook Conversion Pixel fields on:',
		    '',
		    self::$key
		);

		add_settings_field(
		    'fb_pxl_display_on_posts',
		    'Posts',
		    array( $this, 'fb_pxl_display_on_posts_output' ),
		    self::$key,
		    'fb_pxl_display_on'
		);
    }

    public static function fb_pxl_display_on_posts_output() {
		$value = isset( self::$fb_pxl_options[ 'posts' ] ) ?
	 		$options[ 'test_value' ] : '';
		$html = '<input type="checkbox" id="fb_pxl_disable_posts" name="self::$fb_pxl_options[posts]" value="on"' . checked($value, "on", false) . '/>';
		echo $html;
	}

	/**
	 * Make public the protected $key variable.
	 * @since  0.1.0
	 * @return string  Option key
	 */
	public static function key() {
		return self::$key;
	}
}

function fb_pxl_display_on_posts_output( $args ) {
	$value = isset( self::$fb_pxl_options[ 'posts' ] ) ?
	 	$options[ 'ypi_disable_pages' ] : '';
	$html = '<input type="checkbox" id="fb_pxl_disable_posts" name="self::$fb_pxl_options[posts]" value="on"' . checked($value, "on", false) . '/>';
	echo $html;
}
 
// Get the party started
$Fb_Pxl_Admin = new Fb_Pxl_Admin();
$Fb_Pxl_Admin->hooks();