rwmb_get_field_settings

rwmb_get_field_settings is a helper function that gets the field settings by field ID.

It's very helpful in case you want to refer to field's name, field's options array (in a select field) or other settings later in your code.

Usage

To get field settings by field ID, just call:

$field = rwmb_get_field_settings( $field_id );
/*
Result:
[
    'id' => 'field_id',
    'name' => 'Field Name',
    'type' => 'text,
]
*/

However, if you create a custom field for terms, users or settings pages, you will need to specify object type in the second parameter:

$field = rwmb_get_field_settings( $field_id, ['object_type' => 'term'] ); // or 'user', 'setting

Arguments

This function accepts 3 arguments as below:

$field = rwmb_get_field_settings( $field_id, $args, $object_id );

Name	Description
$field_id	The field ID. Required.
$args	Extra arguments for some object types or storages. It works similarly in rwmb_meta function. Can be array or a string in format param1=value1&param2=value2. Optional.
$object_id	Object ID that custom fields are get from. Optional. If not present, current post ID is used.

Returned value

This function returns full array of field settings.

Examples

Getting a select field:

<?php
$field = rwmb_get_field_settings( 'country' );

Displaying all the sub-fields of a non-cloneable group in the format Field Name: Field Value:

<?php
$group_id       = 'my_group';
$group_settings = rwmb_get_field_settings( $group_id );
$group          = rwmb_meta( $group_id );

for ( $i = 0; $i < count( $group ); $i++) {
    $field = $group_settings['fields'][$i];
    ?>
    <div class="sub-field"><?= $field['name'] ?>: <?= $group[ $field['id'] ] ?></div>
    <?php
}

Getting a field for a term with ID 15:

$field = rwmb_get_field_settings( 'color', ['object_type' => 'term'], 15 );

Getting a field from a settings page:

$field = rwmb_get_field_settings( 'hotline', ['object_type' => 'setting'], 'site_option' );

Getting a field from a custom table:

$field = rwmb_the_value( 'price', ['storage_type' => 'custom_table', 'table' => 'properties'], 15 );