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Displaying fields with code

If you're a developer and familiar with changing template file with PHP code, you can use Meta Box helper functions to display fields:

In addition, we also provide rwmb_meta() function, which is a wrapper of the 2 functions above which:

  • Returns the HTML output for rich-content fields: map, osm, and oembed, same as rwmb_the_value(),
  • Returns the same value as rwmb_get_value() for other field types.

Now open your template file for the single event content. Usually, it's template-parts/content.php, single-event.php or single.php file, depending on your theme structure. Then add the following code below the content area:

* Template part for displaying single post content

<article id="post-<?php the_ID(); ?>" <?php post_class(); ?>>
<header class="entry-header">
<?php the_title( '<h1 class="entry-title">', '</h1>' ); ?>

<div class="entry-content">
<?php the_content(); ?>

<strong>Date and time:</strong> <?php rwmb_the_value( 'datetime' ) ?>
<strong>Location:</strong> <?php rwmb_the_value( 'location' ) ?>
<?php rwmb_the_value( 'map' ) ?>
Block themes

For block themes, everything is blocks and there's no PHP template files. In that case, please use the MB Views extension.

All functions accept the following parameters:

$field_idThe field ID. Required.
$argsExtra arguments for some field types (image, file, etc.). Can be array or a string in format param1=value1&param2=value2. See more details in field types. Optional.
$object_idObject ID that custom fields are got from. Optional. If not present, the current post ID is used.
$echoEcho the HTML output (true - default) or return it (false). Applied only for rwmb_the_value() function.


Why does my site crash when I deactivate Meta Box?

If you're using our helper functions in your theme, then they become unavailable when Meta Box is deactivated. You can fix that by going to the admin area » Plugins and re-activate Meta Box.

Alternatively, you can add the following code into your theme's functions.php file to make the error go away, however, the custom fields won't display, either.

if ( ! function_exists( 'rwmb_the_value' ) ) {
function rwmb_the_value( $key, $args = [], $post_id = null ) {
return null;
if ( ! function_exists( 'rwmb_get_value' ) ) {
function rwmb_get_value( $key, $args = [], $post_id = null ) {
return null;
if ( ! function_exists( 'rwmb_meta' ) ) {
function rwmb_meta( $key, $args = [], $post_id = null ) {
return null;
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Can I use WordPress's get_post_meta() function to get custom field value?

Absolutely. Our helper function is just a wrapper of WordPress's get_post_meta function.

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Why don't I see values of custom fields?

There are some cases where you register custom fields conditionally or only for the back end like you wrap the code under is_admin(). In that case, make sure you remove the condition and register custom fields for both the back end and front end.

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Can I use a page builder to show Meta Box fields?

Absolutely. We have official support for Beaver Builder and Elementor. Some page builders already have built-in support for Meta Box like Oxygen Builder, Bricks, and Brizy. See the list of compatible plugins and refer to their docs for how to use them with Meta Box.

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