Checking browser and carry out action.

@sanchez_1960Apr 08.2008

How can I check the browser a client is using in PHP and then carry out a different action based upon that?

to post a comment

@mayooresanApr 09.2008 — #<html>

<body>

<script type="text/javascript">

function ajaxFunction()

{

var xmlHttp;

try

{

// Firefox, Opera 8.0+, Safari

xmlHttp=new XMLHttpRequest();

}

catch (e)

{

// Internet Explorer

try

{

xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");

}

catch (e)

{

try

{

xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");

}

catch (e)

{

alert("Your browser does not support AJAX!");

return false;

}

}

}

xmlHttp.onreadystatechange=function()

{

if(xmlHttp.readyState==4)

{

document.myForm.time.value=xmlHttp.responseText;

}

}

xmlHttp.open("GET","time.asp",true);

xmlHttp.send(null);

}

</script>

<form name="myForm">

Name: <input type="text"

onkeyup="ajaxFunction();" name="username" />

Time: <input type="text" name="time" />

</form>

</body>

</html>[/QUOTE]

I got it from w3schools, I hope it may help you!

@NogDogApr 09.2008 — #If looking for a purely PHP, server-side solution, you can use something like [url=http://www.php.net/get_browser]get_browser[/url](), but all such server-side solutions are dependent upon what information is sent by the browser, and as such can never be depended upon to be accurate or consistent (or even to have been sent at all by the browser).

@HuevoosApr 09.2008 — #For server side detection I made a couple of functions, please note that as NogDog said you can't trust 100% on the info the browser sends. I use them for statistic purposes only

here are the functions:

[code=php]	function parse_useragent($agent){
 $parts = preg_split('/(?(?![^(]*))s(?!()|x{7})/', $agent);
 $data = array();
 foreach($parts as $key => $value){
 switch($key){
 case 0:
 list($data['product'], $comment) = explode(' (', $value);
 
   $info = analyze_product_comment($comment);
   break;
   case 1:
   $data['engine'] = $value;
   break;
   case 2:
   if(stristr($value, 'version'))
   $data['engine'] .= " $value";
   else
   $data['browser'] = $value;
   break;
   case 3:
   $data['browser'] = $value;
   break;
   case 4:
   $data['browser'] = $value . " " .$parts[3];
   break;
   }
   }
   return $data+$info;
  }
  function analyze_product_comment($value){
   $value = str_ireplace(array("(", ")"), "", $value);
   $parts = explode("; ", $value);
   foreach($parts as $key => $val){
   switch($key){
   case 0:
   if(strtolower($val) == 'compatible'){//Usually IE or bots
   $info = array(
   'browser' => $parts[1],//Browser
   'os' => $parts[2]//OS
   );
   return $info;
   }
   $info['platform'] = $val;//Platform
   break;
   case 1:
   if(eregi('[uin]', $val))
   $info['security'] = $val;//Security
   break;
   case 2:
   $info['os'] = $val;//OS
   break;
 
   case 3:
   if(eregi('[a-z-]{2,6}', $val))
   $info['language'] = $val;//Language
   break;
   }
   }
   return $info;
  }[/code]

(more info http://blog.work4bandwidth.com/2/Parsing+the+User+Agent+String+in+PHP/)

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