is_protected_meta()
最后更新于:2021-11-27 10:33:34
is_protected_meta( string$meta_key, string$meta_type=”)Determines whether a meta key is considered protected.
参数
- $meta_key
-
(string) (Required) Metadata key.
- $meta_type
-
(string) (Optional) Type of object metadata is for. Accepts ‘post’, ‘comment’, ‘term’, ‘user’, or any other object type with an associated meta table.
Default value: ”
响应
(bool) Whether the meta key is considered protected.
源文件
文件: gc-includes/meta.php
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 );
}