How to convert php ipv6 format

php ipv6 format conversion method: first create a PHP sample file; then define a "$ipv6"; finally use "gmp_strval(gmp_init($ipv6long,2),10);" to convert ipv6 to numbers That’s it.

The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computer

How to convert php ipv6 format?

Convert ip to numbers (ipv6) in PHP

Convert the ip address of ivp6 to numbers and store it in the database

Convert ipv6 to numbers ( Positive integer):

For the ip address in ipv6 format, we cannot use the ip2long() function to directly convert it. We can only convert it through other methods. The following will be posted by netizen Weissner in the PHP manual (http ://php.net/manual/zh/function.ip2long.php#94477) leave a solution. Before that, everyone needs to pay attention to the fact that in the php.ini file, the comment before extension=php_gmp.dll needs to be The ';' symbol is removed because the function in the extension will be used in the code. .

The code to convert ipv6 to numbers is as follows:

$ipv6 = 'FEDC:BA98:7654:3210:FEDC:BA98:7654:3210';
$ip_n = inet_pton($ipv6);
$bits = 15; // 16 x 8 bit = 128bit
$ipv6long='';
while ($bits >= 0) {
        $bin = sprintf("%08b",(ord($ip_n[$bits])));
        $ipv6long = $bin.$ipv6long;
        $bits--;
}
echo gmp_strval(gmp_init($ipv6long,2),10); // 结果为：338770000845734292534325025077361652240

As you can see, after the ipv6 address is converted to numbers, there are 38 numbers, and the bigint in the database cannot be saved, so You also need to convert the field type in the database to char or varchar type.

Attached is the code to determine whether the ip is ivp4 or ipv6, and convert the ip to digital format:

$ip = '192.168.101.100';
//$ip = 'FEDC:BA98:7654:3210:FEDC:BA98:7654:3210';
if(filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) {
    echo sprintf('%u',ip2long($ip));exit;
 
} else if(filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) {
 
$ip_n = inet_pton($ip);
$bits = 15; // 16 x 8 bit = 128bit
$ipv6long='';
    while ($bits >= 0) {
        $bin = sprintf("%08b",(ord($ip_n[$bits])));
        $ipv6long = $bin.$ipv6long;
        $bits--;
    }
    echo gmp_strval(gmp_init($ipv6long,2),10);exit;
}

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