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is_serialized_string › WordPress Function

Since2.0.5
Deprecatedn/a
› is_serialized_string ( $data )
Parameters:
  • (string) $data Serialized data.
    Required: Yes
Returns:
  • (bool) False if not a serialized string, true if it is.
Defined at:
Codex:

Checks whether serialized data is of string type.



Related Functions: is_serialized, is_user_logged_in, set_user_setting, serialize_blocks, get_user_id_from_string

Source 

function is_serialized_string( $data ) {
	// if it isn't a string, it isn't a serialized string.
	if ( ! is_string( $data ) ) {
		return false;
	}
	$data = trim( $data );
	if ( strlen( $data ) < 4 ) {
		return false;
	} elseif ( ':' !== $data[1] ) {
		return false;
	} elseif ( ! str_ends_with( $data, ';' ) ) {
		return false;
	} elseif ( 's' !== $data[0] ) {
		return false;
	} elseif ( '"' !== substr( $data, -2, 1 ) ) {
		return false;
	} else {
		return true;
	}
}