rwmb_set_meta

rwmb_set_meta is a helper function that helps you to set value for a field.

Arguments

This function accepts 4 parameters as follows:

rwmb_set_meta( $object_id, $field_id, $value, $args = [] );

:::warning

This function works only when the field is already registered. In Meta Box, fields are registered at hook init with priority 20. So, you need to run this function after that:

add_action( 'init', function() {
	rwmb_set_meta( 12, 'my_field', 'my_value' );
}, 99 );

:::

Examples

Setting a field value for a post:

add_action( 'init', function() {
	$post_id = 123;
	$field_id = 'my_field';
	$value = 'My custom value';
	rwmb_set_meta( $post_id, $field_id, $value );
}, 99 );

Setting a cloneable group value for a post:

add_action( 'init', function() {
	$post_id = 123;
	$field_id = 'my_field';
	$value = [
		[
			'name' => 'Andy',
			'email' => 'andy@mail.com',
		],
		[
			'name' => 'Bruce',
			'email' => 'bruce@mail.com',
		],
	];
	rwmb_set_meta( $post_id, $field_id, $value );
}, 99 );

Setting a field value for a term:

add_action( 'init', function() {
	$term_id = 123;
	$field_id = 'my_field';
	$value = 'My custom value';
	$args = [ 'object_type' => 'term' ];
	rwmb_set_meta( $term_id, $field_id, $value, $args );
}, 99 );

Setting a field value for a user:

add_action( 'init', function() {
	$user_id = 123;
	$field_id = 'my_field';
	$value = 'My custom value';
	$args = [ 'object_type' => 'user' ];
	rwmb_set_meta( $user_id, $field_id, $value, $args );
}, 99 );

Setting a field value for a settings page:

add_action( 'init', function() {
	$option_name = 'my_option';
	$field_id = 'my_field';
	$value = 'My custom value';
	$args = [ 'object_type' => 'setting' ];
	rwmb_set_meta( $option_name, $field_id, $value, $args );
}, 99 );

Setting a field value with custom table:

add_action( 'init', function() {
	$table_name = 'my_table';
	$post_id = 123;
	$field_id = 'my_field';
	$value = 'My custom value';
	$args = [
		'storage_type' => 'custom_table',
		'table'        => $table_name,
	];
	rwmb_set_meta( $post_id, $field_id, $value, $args );
}, 99 );