is_protected_meta

函数
is_protected_meta ( $meta_key, $meta_type = '' )
参数
  • (string) $meta_key Metadata key.
    Required:
  • (string) $meta_type Optional. Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user', or any other object type with an associated meta table. Default empty.
    Required:
    Default: (empty)
返回值
  • (bool) Whether the meta key is considered protected.
定义位置
相关方法
is_protected_endpointis_protected_ajax_action_deprecated_argumentpopulate_site_metaregister_term_meta
引入
3.1.3
弃用
-

is_protected_meta – 这个函数检查一个给定的元键是否被保护。如果元密钥是受保护的,该函数返回true。

决定一个元密钥是否被认为是受保护的。

function is_protected_meta( $meta_key, $meta_type = '' ) {
	$sanitized_key = preg_replace( "/[^x20-x7Ep{L}]/", '', $meta_key );
	$protected     = strlen( $sanitized_key ) > 0 && ( '_' === $sanitized_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  Metadata key.
	 * @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
	 *                          or any other object type with an associated meta table.
	 */
	return apply_filters( 'is_protected_meta', $protected, $meta_key, $meta_type );
}

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