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is_protected_meta( string $meta_key, string|null $meta_type = null )

Determines whether a meta key is considered protected.

Description

Parameters

$meta_key

(string) (Required) Meta key.

$meta_type

(string|null) (Optional) Type of object metadata is for (e.g., comment, post, term, or user).

Default value: null

Return

(bool) Whether the meta key is considered protected.

Source

File: wp-includes/meta.php

function is_protected_meta( $meta_key, $meta_type = null ) {
	$protected = ( '_' == $meta_key[0] );

	/**
	 * Filters whether a meta key is considered protected.
	 *
	 * @since 3.2.0
	 *
	 * @param bool        $protected Whether the key is considered protected.
	 * @param string      $meta_key  Meta key.
	 * @param string|null $meta_type Type of object metadata is for (e.g., comment, post, term, or user).
	 */
	return apply_filters( 'is_protected_meta', $protected, $meta_key, $meta_type );
}

Changelog

Version Description
3.1.3 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/is_protected_meta