--TEST-- gmp_popcount() basic tests --SKIPIF-- <?php if (!extension_loaded("gmp")) print "skip"; ?> --FILE-- <?php var_dump(gmp_popcount(-1)); var_dump(gmp_popcount(0)); var_dump(gmp_popcount(12123)); var_dump(gmp_popcount("52638927634234")); var_dump(gmp_popcount("-23476123423433")); $n = gmp_init("9876546789222"); var_dump(gmp_popcount($n)); var_dump(gmp_popcount(array())); var_dump(gmp_popcount()); echo "Done\n"; ?> --EXPECTF-- int(-1) int(0) int(10) int(31) int(-1) int(20) Warning: gmp_popcount(): Unable to convert variable to GMP - wrong type in %s on line %d bool(false) Warning: gmp_popcount() expects exactly 1 parameter, 0 given in %s on line %d NULL Done