PHP获取用户的真实 IP

2015/08/09 38875

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function getRealIpAddr() 
{ 
    if (!emptyempty($_SERVER['HTTP_CLIENT_IP'])) 
    { 
        $ip=$_SERVER['HTTP_CLIENT_IP']; 
    } 
    elseif (!emptyempty($_SERVER['HTTP_X_FORWARDED_FOR'])) 
    //to check ip is pass from proxy 
    { 
        $ip=$_SERVER['HTTP_X_FORWARDED_FOR']; 
    } 
    else 
    { 
        $ip=$_SERVER['REMOTE_ADDR']; 
    } 
    return $ip; 
}

用法：

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<?php
$ip = getRealIpAddr();
echo $ip;
?>