Online PHP editor | refs for MHERV

<?php echo "Leading zeroes are not significant: "; var_dump(inet_pton("2001:0010::") == inet_pton("2001:10::")); echo "2001:0010:: "; var_dump(filter_var("2001:0010::", FILTER_VALIDATE_IP, FILTER_FLAG_NO_RES_RANGE)); echo "2001:10:: "; var_dump(filter_var("2001:10::", FILTER_VALIDATE_IP, FILTER_FLAG_NO_RES_RANGE)); echo "\n"; echo "Testing manually: "; $inet = array_map("hexdec", array_map("bin2hex", str_split(inet_pton("2001:10::"), 2))); var_dump($inet[0] != 0x2001 || ($inet[1] & 0xFFF0) != 0x0010);