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@ 2015-07-23T13:41:43Z

<?php
function isLocalIPAddress($IPAddress)
{
    return ( !filter_var($IPAddress, FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE ) );
}

var_dump( isLocalIPAddress('127.0.0.1') );
var_dump( isLocalIPAddress('192.168.1.20') );
var_dump( isLocalIPAddress('64.233.160.0') );

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
filter_var: documentation ( source)

preferences:dark modelive previewkey bindings

56.74 ms | 405 KiB | 5 Q