INET_NTOA 和 INET_ATON 的 PHP 等价物

Question

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Answer 1

你想要ip2long()和 long2ip() .

$ip = '192.0.34.166';
printf("%u\n", ip2long($ip)); // 3221234342

如手册中所述:

Note: Because PHP's integer type is signed, and many IP addresses will result in negative integers, you need to use the "%u" formatter of sprintf() or printf() to get the string representation of the unsigned IP address.