postbox_classes( string $id, string $page )

Returns the list of classes to be used by a meta box.


Description Description


Parameters Parameters

$id

(string) (Required)

$page

(string) (Required)


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Return Return

(string)


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Source Source

File: wp-admin/includes/post.php

function postbox_classes( $id, $page ) {
	if ( isset( $_GET['edit'] ) && $_GET['edit'] == $id ) {
		$classes = array( '' );
	} elseif ( $closed = get_user_option('closedpostboxes_'.$page ) ) {
		if ( !is_array( $closed ) ) {
			$classes = array( '' );
		} else {
			$classes = in_array( $id, $closed ) ? array( 'closed' ) : array( '' );
		}
	} else {
		$classes = array( '' );
	}

	/**
	 * Filters the postbox classes for a specific screen and screen ID combo.
	 *
	 * The dynamic portions of the hook name, `$page` and `$id`, refer to
	 * the screen and screen ID, respectively.
	 *
	 * @since 3.2.0
	 *
	 * @param array $classes An array of postbox classes.
	 */
	$classes = apply_filters( "postbox_classes_{$page}_{$id}", $classes );
	return implode( ' ', $classes );
}

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Changelog Changelog

Changelog
Version Description
2.5.0 Introduced.


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