is_serialized_string( string $data ): bool

742function is_serialized_string( $data ) {743	// if it isn't a string, it isn't a serialized string.744	if ( ! is_string( $data ) ) {745		return false;746	}747	$data = trim( $data );748	if ( strlen( $data ) < 4 ) {749		return false;750	} elseif ( ':' !== $data[1] ) {751		return false;752	} elseif ( ! str_ends_with( $data, ';' ) ) {753		return false;754	} elseif ( 's' !== $data[0] ) {755		return false;756	} elseif ( '"' !== substr( $data, -2, 1 ) ) {757		return false;758	} else {759		return true;760	}761}