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_validate_cache_id › WordPress Function

Since6.3.0
已弃用n/a
› _validate_cache_id ( $object_id )
参数:
  • (mixed) $object_id The cache ID to validate.
    Required: Yes
返回:
  • (bool) Whether the given $object_id is a valid cache ID.
定义在:
文档:

Checks whether the given cache ID is either an integer or an integer-like string.

Both 16 and "16" are considered valid, other numeric types and numeric strings (16.3 and "16.3") are considered invalid.


Related Functions: validate_email, validate_active_plugins, wp_validate_auth_cookie, wp_validate_site_data, validate_file

源码 

function _validate_cache_id( $object_id ) {
	/*
	 * filter_var() could be used here, but the `filter` PHP extension
	 * is considered optional and may not be available.
	 */
	if ( is_int( $object_id )
		|| ( is_string( $object_id ) && (string) (int) $object_id === $object_id ) ) {
		return true;
	}

	/* translators: %s: The type of the given object ID. */
	$message = sprintf( __( 'Object ID must be an integer, %s given.' ), gettype( $object_id ) );
	_doing_it_wrong( '_get_non_cached_ids', $message, '6.3.0' );

	return false;
}