--TEST-- GMP casting using casting operators --SKIPIF-- <?php if (!extension_loaded("gmp")) print "skip"; ?> --FILE-- <?php $n = gmp_init(42); echo $n, "\n"; var_dump((string) $n); var_dump((int) $n); var_dump((float) $n); var_dump((bool) $n); ?> --EXPECTF-- 42 string(2) "42" int(42) float(42) Catchable fatal error: Object of class GMP could not be converted to boolean in %s on line %d