OOP Settings Page

oop-settings-page.php

	/**
	 * 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;
	}