Gravity Forms Show Entry Key and Value on Entry Detail Page

gform_show_key_value_entry_detail.php

<?php
add_filter( 'gform_entry_field_value', 'display_key_and_value', 10, 4 );

function display_key_and_value( $value, $field, $entry, $form ){
	switch( $field['type'] ){
		case "checkbox":
		break;
		case "select":
		case "radio":
			$answers = wp_list_pluck( $field['choices'], 'value', 'text' );
			if( in_array( $value, $answers ) ){
				$value_name = array_search( $value, $answers);
				if( $value != $value_name ){
					
					return $value_name .' <i>( '. $value .' )</i>';
				}
			}
		break;
		
		default:
		return $value;
		break;
	}
	return $value;
}
?>