Identify browser and its version

Question

I did several searches on different sites but I have not found a definitive solution and that for sure for all browsers

I wonder how I can identify the browser and its version using PHP.

For example:

IE 9
CHROME 39

Answer 1

The information about the client’s browser is in the variable $_SERVER['HTTP_USER_AGENT']. Other details can be found by the function get_browser().

When using the $_SERVER['HTTP_USER_AGENT'] we should note that it is not in a language of easy understanding, it is necessary to translate the User Agents to extract that information.

This user agent analysis can be done manually or you can use a package to help you with it. I found this which is very simple to use.

After installed via Poser:

composer require sinergi/browser-detector

just do the following:

use Sinergi\BrowserDetector\Browser;

$browser = new Browser();

if ($browser->getName() === $browser::CHROME) {
    echo 'Por favor, troque seu browser';
}

On github itself we have documentation on how to use this package.

Answer 2

Hello, I chose to work as follows:

I created a function to check the browser and the OS

private function VerificaNavegadorSO() {
    $ip = $_SERVER['REMOTE_ADDR'];

    $u_agent = $_SERVER['HTTP_USER_AGENT'];
    $bname = 'Unknown';
    $platform = 'Unknown';
    $version= "";

    if (preg_match('/linux/i', $u_agent)) {
        $platform = 'Linux';
    }
    elseif (preg_match('/macintosh|mac os x/i', $u_agent)) {
        $platform = 'Mac';
    }
    elseif (preg_match('/windows|win32/i', $u_agent)) {
        $platform = 'Windows';
    }


    if(preg_match('/MSIE/i',$u_agent) && !preg_match('/Opera/i',$u_agent))
    {
        $bname = 'Internet Explorer';
        $ub = "MSIE";
    }
    elseif(preg_match('/Firefox/i',$u_agent))
    {
        $bname = 'Mozilla Firefox';
        $ub = "Firefox";
    }
    elseif(preg_match('/Chrome/i',$u_agent))
    {
        $bname = 'Google Chrome';
        $ub = "Chrome";
    }
    elseif(preg_match('/AppleWebKit/i',$u_agent))
    {
        $bname = 'AppleWebKit';
        $ub = "Opera";
    }
    elseif(preg_match('/Safari/i',$u_agent))
    {
        $bname = 'Apple Safari';
        $ub = "Safari";
    }

    elseif(preg_match('/Netscape/i',$u_agent))
    {
        $bname = 'Netscape';
        $ub = "Netscape";
    }

    $known = array('Version', $ub, 'other');
    $pattern = '#(?<browser>' . join('|', $known) .
    ')[/ ]+(?<version>[0-9.|a-zA-Z.]*)#';
    if (!preg_match_all($pattern, $u_agent, $matches)) {
    }


    $i = count($matches['browser']);
    if ($i != 1) {
        if (strripos($u_agent,"Version") < strripos($u_agent,$ub)){
            $version= $matches['version'][0];
        }
        else {
            $version= $matches['version'][1];
        }
    }
    else {
        $version= $matches['version'][0];
    }

    // check if we have a number
    if ($version==null || $version=="") {$version="?";}

    $Browser = array(
            'userAgent' => $u_agent,
            'name'      => $bname,
            'version'   => $version,
            'platform'  => $platform,
            'pattern'    => $pattern
    );

    $navegador = "Navegador: " . $Browser['name'] . " " . $Browser['version'];
    $so = "SO: " . $Browser['platform'];

    /* Para finalizar coloquei aqui o meu insert para salvar na base de dados... Não fiz nada para mostrar em tela, pois só uso para fins de log do sistema  */
}

In the table it saves "Browser: Google Chrome 39.0.2171.95 - OS: Windows"

Answer 3

Check the User Agent from the browser, and do the treatment according to the result, you can discover this via server which received the reply request, and in the reply already do the processing of the page to be rendered, or via client, and render in the client itself.

PHP

$_SERVER['HTTP_USER_AGENT'];

JS

function UserAgente(){
      var ua = window.navigator.userAgent;
      return ua;
}

With this do a compatibility check according to the version of the browser used by the client....

Here you can find a complete list of User Agents

Dai just work with Expressões Regulares. Identifying each version of a browser by your User Agent, this is quite laborious. Remembering that there are hundreds of browsers, each with dozens and dozens of different versions.