$ts = gmp_mod( $ts, gmp_pow( '2', '60' ) ); // wrap around
$id_bin = str_pad( gmp_strval( $ts, 2 ), 60, '0', STR_PAD_LEFT );
} elseif ( extension_loaded( 'bcmath' ) ) {
$ts = gmp_mod( $ts, gmp_pow( '2', '60' ) ); // wrap around
$id_bin = str_pad( gmp_strval( $ts, 2 ), 60, '0', STR_PAD_LEFT );
} elseif ( extension_loaded( 'bcmath' ) ) {