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<?php if (defined('AF_INET6')) { echo "PHP was compiled without --disable-ipv6 option"; } else { echo "PHP was compiled with --disable-ipv6 option"; } $in_addr = inet_pton('127.0.0.1'); $in6_addr = inet_pton('::1'); echo "\n"; var_dump(bin2hex($in_addr)); var_dump(bin2hex($in6_addr)); echo "\n"; echo $in6_addr;
Output for git.master, git.master_jit, rfc.property-hooks
PHP was compiled with --disable-ipv6 option string(8) "7f000001" string(32) "00000000000000000000000000000001" 

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