get user browser os ip

userData.php

function getRealIpAddr()
{
    if (!empty($_SERVER['HTTP_CLIENT_IP']))
    {
        $ip=$_SERVER['HTTP_CLIENT_IP'];
    }
    elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR']))
        //to check ip is pass from proxy
    {
        $ip=$_SERVER['HTTP_X_FORWARDED_FOR'];
    }
    else
    {
        $ip=$_SERVER['REMOTE_ADDR'];
    }
    return $ip;
}
echo getRealIpAddr();
echo Yii::$app->getRequest()->getUserIP();


function getBrowserOS($ua = '') {

    $user_agent     =   $_SERVER['HTTP_USER_AGENT'];
    $browser        =   "Unknown Browser";
    $os_platform    =   "Unknown OS Platform";

    // Get the Operating System Platform

    if (preg_match('/windows|win32/i', $user_agent)) {

        $os_platform    =   'Windows';

        if (preg_match('/windows nt 6.2/i', $user_agent)) {

            $os_platform    .=  " 8";

        } else if (preg_match('/windows nt 6.1/i', $user_agent)) {

            $os_platform    .=  " 7";

        } else if (preg_match('/windows nt 6.0/i', $user_agent)) {

            $os_platform    .=  " Vista";

        } else if (preg_match('/windows nt 5.2/i', $user_agent)) {

            $os_platform    .=  " Server 2003/XP x64";

        } else if (preg_match('/windows nt 5.1/i', $user_agent) || preg_match('/windows xp/i', $user_agent)) {

            $os_platform    .=  " XP";

        } else if (preg_match('/windows nt 5.0/i', $user_agent)) {

            $os_platform    .=  " 2000";

        } else if (preg_match('/windows me/i', $user_agent)) {

            $os_platform    .=  " ME";

        } else if (preg_match('/win98/i', $user_agent)) {

            $os_platform    .=  " 98";

        } else if (preg_match('/win95/i', $user_agent)) {

            $os_platform    .=  " 95";

        } else if (preg_match('/win16/i', $user_agent)) {

            $os_platform    .=  " 3.11";

        }

    } else if (preg_match('/macintosh|mac os x/i', $user_agent)) {

        $os_platform    =   'Mac';

        if (preg_match('/macintosh/i', $user_agent)) {

            $os_platform    .=  " OS X";

        } else if (preg_match('/mac_powerpc/i', $user_agent)) {

            $os_platform    .=  " OS 9";

        }

    } else if (preg_match('/linux/i', $user_agent)) {

        $os_platform    =   "Linux";

    }

    // Override if matched

    if (preg_match('/iphone/i', $user_agent)) {

        $os_platform    =   "iPhone";

    } else if (preg_match('/android/i', $user_agent)) {

        $os_platform    =   "Android";

    } else if (preg_match('/blackberry/i', $user_agent)) {

        $os_platform    =   "BlackBerry";

    } else if (preg_match('/webos/i', $user_agent)) {

        $os_platform    =   "Mobile";

    } else if (preg_match('/ipod/i', $user_agent)) {

        $os_platform    =   "iPod";

    } else if (preg_match('/ipad/i', $user_agent)) {

        $os_platform    =   "iPad";

    }

    // Get the Browser

    if (preg_match('/msie/i', $user_agent) && !preg_match('/opera/i', $user_agent)) {

        $browser        =   "Internet Explorer";

    } else if (preg_match('/firefox/i', $user_agent)) {

        $browser        =   "Firefox";

    } else if (preg_match('/chrome/i', $user_agent)) {

        $browser        =   "Chrome";

    } else if (preg_match('/safari/i', $user_agent)) {

        $browser        =   "Safari";

    } else if (preg_match('/opera/i', $user_agent)) {

        $browser        =   "Opera";

    } else if (preg_match('/netscape/i', $user_agent)) {

        $browser        =   "Netscape";

    } else if (preg_match('/UCBrowser/i', $user_agent)) {

        $browser        =   "UCBrowser";

    }

    // Override if matched
/*
    if ($os_platform == "iPhone" || $os_platform == "Android" || $os_platform == "BlackBerry" || $os_platform == "Mobile" || $os_platform == "iPod" || $os_platform == "iPad") {

        if (preg_match('/mobile/i', $user_agent)) {

            $browser    =   "Handheld Browser";

        }

    }
*/
    // Create a Data Array

    return array(
        'browser'       =>  $browser,
        'os_platform'   =>  $os_platform
    );

}

$user_agent     =   getBrowserOS();

$device_details =   "<strong>Browser: </strong>".$user_agent['browser']."<br /><strong>Operating System: </strong>".$user_agent['os_platform']."";

print_r($device_details);