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ip2long

ip2long

Converts a string containing an (IPv4) Internet Protocol dotted address into a long integer

 **ip2long** string $ip

The function generates a long integer representation of IPv4 Internet network address from its Internet standard format (dotted string) representation. ip2long

will also work with non-complete IP

addresses. Read for more info. ip2longurl.ip2long.tech

ipA standard format address.

Returns the long integer or false if is invalid. ip

Voorbeeld: Example

<?php
$ip = gethostbyname('www.example.com');
$out = "The following URLs are equivalent:<br />\n";
$out .= 'http://www.example.com/, http://' . $ip . '/, and http://' . sprintf("%u", ip2long($ip)) . "/<br />\n";
echo $out;
?>

Voorbeeld: Displaying an IP address

 This second example shows how to print a converted address with the
  function:
`printf`

<?php
$ip   = gethostbyname('www.example.com');
$long = ip2long($ip);

if ($long == -1 || $long === FALSE) {
    echo 'Invalid IP, please try again';
} else {
    echo $ip   . "\n";            // 192.0.34.166
    echo $long . "\n";            // 3221234342 (-1073732954 on 32-bit systems, due to integer overflow)
    printf("%u\n", ip2long($ip)); // 3221234342
}
?>

Opmerking: > Because PHP's type is signed, and many IP addresses will result in negative integers on 32-bit architectures, you need to use the "%u" formatter of or to get the string representation of the unsigned IP address. int``sprintf``printf

Opmerking: > will return for the IP on 32-bit systems due to the integer value overflowing. ip2long``-1``255.255.255.255

long2ip``sprintf

Vorige ← inet_pton Volgende long2ip →

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