diff --git a/example-functions.php b/example-functions.php
index 89364a8..416affb 100644
--- a/example-functions.php
+++ b/example-functions.php
@@ -1,191 +1,209 @@
 <?php
-// Include & setup custom metabox and fields
-$prefix = '_cmb_'; // start with an underscore to hide fields from custom fields list
+/**
+ * Include and setup custom metaboxes and fields.
+ *
+ * @category YourThemeOrPlugin
+ * @package  Metaboxes
+ * @license  http://www.opensource.org/licenses/gpl-license.php GPL v2.0 (or later)
+ * @link     https://github.com/jaredatch/Custom-Metaboxes-and-Fields-for-WordPress
+ */
+
 add_filter( 'cmb_meta_boxes', 'be_sample_metaboxes' );
-function be_sample_metaboxes( $meta_boxes ) {
-	global $prefix;
+/**
+ * Define the metabox and field configurations.
+ *
+ * @param  array $meta_boxes
+ * @return array
+ */
+function be_sample_metaboxes( array $meta_boxes ) {
+
+	// Start with an underscore to hide fields from custom fields list
+	$prefix = '_cmb_';
+
 	$meta_boxes[] = array(
-		'id' => 'test_metabox',
-		'title' => 'Test Metabox',
-		'pages' => array( 'page' ), // post type
-		'context' => 'normal',
-		'priority' => 'high',
+		'id'         => 'test_metabox',
+		'title'      => 'Test Metabox',
+		'pages'      => array( 'page', ), // Post type
+		'context'    => 'normal',
+		'priority'   => 'high',
 		'show_names' => true, // Show field names on the left
-		'fields' => array(
+		'fields'     => array(
 			array(
 				'name' => 'Test Text',
 				'desc' => 'field description (optional)',
-				'id' => $prefix . 'test_text',
-				'type' => 'text'
+				'id'   => $prefix . 'test_text',
+				'type' => 'text',
 			),
 			array(
 				'name' => 'Test Text Small',
 				'desc' => 'field description (optional)',
-				'id' => $prefix . 'test_textsmall',
-				'type' => 'text_small'
+				'id'   => $prefix . 'test_textsmall',
+				'type' => 'text_small',
 			),
 			array(
 				'name' => 'Test Text Medium',
 				'desc' => 'field description (optional)',
-				'id' => $prefix . 'test_textmedium',
-				'type' => 'text_medium'
+				'id'   => $prefix . 'test_textmedium',
+				'type' => 'text_medium',
 			),
 			array(
 				'name' => 'Test Date Picker',
 				'desc' => 'field description (optional)',
-				'id' => $prefix . 'test_textdate',
-				'type' => 'text_date'
+				'id'   => $prefix . 'test_textdate',
+				'type' => 'text_date',
 			),
 			array(
 				'name' => 'Test Date Picker (UNIX timestamp)',
 				'desc' => 'field description (optional)',
-				'id' => $prefix . 'test_textdate_timestamp',
-				'type' => 'text_date_timestamp'
-			),			
+				'id'   => $prefix . 'test_textdate_timestamp',
+				'type' => 'text_date_timestamp',
+			),
 			array(
 	            'name' => 'Test Time',
 	            'desc' => 'field description (optional)',
-	            'id' => $prefix . 'test_time',
-	            'type' => 'text_time'
-	        ),			
+	            'id'   => $prefix . 'test_time',
+	            'type' => 'text_time',
+	        ),
 			array(
 				'name' => 'Test Money',
 				'desc' => 'field description (optional)',
-				'id' => $prefix . 'test_textmoney',
-				'type' => 'text_money'
+				'id'   => $prefix . 'test_textmoney',
+				'type' => 'text_money',
 			),
 			array(
 				'name' => 'Test Text Area',
 				'desc' => 'field description (optional)',
-				'id' => $prefix . 'test_textarea',
-				'type' => 'textarea'
+				'id'   => $prefix . 'test_textarea',
+				'type' => 'textarea',
 			),
 			array(
 				'name' => 'Test Text Area Small',
 				'desc' => 'field description (optional)',
-				'id' => $prefix . 'test_textareasmall',
-				'type' => 'textarea_small'
+				'id'   => $prefix . 'test_textareasmall',
+				'type' => 'textarea_small',
 			),
 			array(
 				'name' => 'Test Text Area Code',
 				'desc' => 'field description (optional)',
-				'id' => $prefix . 'test_textarea_code',
-				'type' => 'textarea_code'
+				'id'   => $prefix . 'test_textarea_code',
+				'type' => 'textarea_code',
 			),
 			array(
 				'name' => 'Test Title Weeeee',
 				'desc' => 'This is a title description',
+				'id'   => $prefix . 'test_title',
 				'type' => 'title',
-				'id' => $prefix . 'test_title'
 			),
 			array(
-				'name' => 'Test Select',
-				'desc' => 'field description (optional)',
-				'id' => $prefix . 'test_select',
-				'type' => 'select',
+				'name'    => 'Test Select',
+				'desc'    => 'field description (optional)',
+				'id'      => $prefix . 'test_select',
+				'type'    => 'select',
 				'options' => array(
-					array('name' => 'Option One', 'value' => 'standard'),
-					array('name' => 'Option Two', 'value' => 'custom'),
-					array('name' => 'Option Three', 'value' => 'none')				
-				)
+					array( 'name' => 'Option One', 'value' => 'standard', ),
+					array( 'name' => 'Option Two', 'value' => 'custom', ),
+					array( 'name' => 'Option Three', 'value' => 'none', ),
+				),
 			),
 			array(
-				'name' => 'Test Radio inline',
-				'desc' => 'field description (optional)',
-				'id' => $prefix . 'test_radio',
-				'type' => 'radio_inline',
+				'name'    => 'Test Radio inline',
+				'desc'    => 'field description (optional)',
+				'id'      => $prefix . 'test_radio',
+				'type'    => 'radio_inline',
 				'options' => array(
-					array('name' => 'Option One', 'value' => 'standard'),
-					array('name' => 'Option Two', 'value' => 'custom'),
-					array('name' => 'Option Three', 'value' => 'none')				
-				)
+					array( 'name' => 'Option One', 'value' => 'standard', ),
+					array( 'name' => 'Option Two', 'value' => 'custom', ),
+					array( 'name' => 'Option Three', 'value' => 'none', ),
+				),
 			),
 			array(
-				'name' => 'Test Radio',
-				'desc' => 'field description (optional)',
-				'id' => $prefix . 'test_radio',
-				'type' => 'radio',
+				'name'    => 'Test Radio',
+				'desc'    => 'field description (optional)',
+				'id'      => $prefix . 'test_radio',
+				'type'    => 'radio',
 				'options' => array(
-					array('name' => 'Option One', 'value' => 'standard'),
-					array('name' => 'Option Two', 'value' => 'custom'),
-					array('name' => 'Option Three', 'value' => 'none')				
-				)
+					array( 'name' => 'Option One', 'value' => 'standard', ),
+					array( 'name' => 'Option Two', 'value' => 'custom', ),
+					array( 'name' => 'Option Three', 'value' => 'none', ),
+				),
 			),
 			array(
-				'name' => 'Test Taxonomy Radio',
-				'desc' => 'Description Goes Here',
-				'id' => $prefix . 'text_taxonomy_radio',
-				'taxonomy' => '', //Enter Taxonomy Slug
-				'type' => 'taxonomy_radio',	
+				'name'     => 'Test Taxonomy Radio',
+				'desc'     => 'Description Goes Here',
+				'id'       => $prefix . 'text_taxonomy_radio',
+				'type'     => 'taxonomy_radio',
+				'taxonomy' => '', // Taxonomy Slug
 			),
 			array(
-				'name' => 'Test Taxonomy Select',
-				'desc' => 'Description Goes Here',
-				'id' => $prefix . 'text_taxonomy_select',
-				'taxonomy' => '', //Enter Taxonomy Slug
-				'type' => 'taxonomy_select',	
+				'name'     => 'Test Taxonomy Select',
+				'desc'     => 'Description Goes Here',
+				'id'       => $prefix . 'text_taxonomy_select',
+				'type'     => 'taxonomy_select',
+				'taxonomy' => '', // Taxonomy Slug
 			),
 			array(
 				'name' => 'Test Checkbox',
 				'desc' => 'field description (optional)',
-				'id' => $prefix . 'test_checkbox',
-				'type' => 'checkbox'
+				'id'   => $prefix . 'test_checkbox',
+				'type' => 'checkbox',
 			),
 			array(
-				'name' => 'Test Multi Checkbox',
-				'desc' => 'field description (optional)',
-				'id' => $prefix . 'test_multicheckbox',
-				'type' => 'multicheck',
+				'name'    => 'Test Multi Checkbox',
+				'desc'    => 'field description (optional)',
+				'id'      => $prefix . 'test_multicheckbox',
+				'type'    => 'multicheck',
 				'options' => array(
 					'check1' => 'Check One',
 					'check2' => 'Check Two',
 					'check3' => 'Check Three',
-				)
+				),
 			),
 			array(
-				'name' => 'Test wysiwyg',
-				'desc' => 'field description (optional)',
-				'id' => $prefix . 'test_wysiwyg',
-				'type' => 'wysiwyg',
-				'options' => array(
-					'textarea_rows' => 5,
-				)
+				'name'    => 'Test wysiwyg',
+				'desc'    => 'field description (optional)',
+				'id'      => $prefix . 'test_wysiwyg',
+				'type'    => 'wysiwyg',
+				'options' => array(	'textarea_rows' => 5, ),
 			),
 			array(
 				'name' => 'Test Image',
 				'desc' => 'Upload an image or enter an URL.',
-				'id' => $prefix . 'test_image',
-				'type' => 'file'
+				'id'   => $prefix . 'test_image',
+				'type' => 'file',
 			),
-		)
+		),
 	);
 
 	$meta_boxes[] = array(
-		'id' => 'about_page_metabox',
-		'title' => 'About Page Metabox',
-		'pages' => array( 'page' ), // post type
-		'show_on' => array( 'key' => 'id', 'value' => array( 2 ) ), // specific post ids to display this metabox
-		'context' => 'normal',
-		'priority' => 'high',
+		'id'         => 'about_page_metabox',
+		'title'      => 'About Page Metabox',
+		'pages'      => array( 'page', ), // Post type
+		'context'    => 'normal',
+		'priority'   => 'high',
 		'show_names' => true, // Show field names on the left
+		'show_on'    => array( 'key' => 'id', 'value' => array( 2, ), ), // Specific post IDs to display this metabox
 		'fields' => array(
 			array(
 				'name' => 'Test Text',
 				'desc' => 'field description (optional)',
-				'id' => $prefix . 'test_text',
-				'type' => 'text'
+				'id'   => $prefix . 'test_text',
+				'type' => 'text',
 			),
 		)
 	);
-	
+
+	// Add other metaboxes as needed
+
 	return $meta_boxes;
 }
 
-
-// Initialize the metabox class
 add_action( 'init', 'be_initialize_cmb_meta_boxes', 9999 );
+/**
+ * Initialize the metabox class.
+ */
 function be_initialize_cmb_meta_boxes() {
-	if ( !class_exists( 'cmb_Meta_Box' ) ) {
-		require_once( 'init.php' );
-	}
+
+	if ( ! class_exists( 'cmb_Meta_Box' ) )
+		require_once 'init.php';
+
 }
\ No newline at end of file