Hello,
How to program browser detection in php ?
I would like to detect the browser automatically, then use if browser = ... then ... else if browser = ... then .... endif
How to do so ?
Thanks.
davy_yg 2 Posting Whiz
deceptikon 1,790 Code Sniper Team Colleague Featured Poster
cereal 1,524 Nearly a Senior Poster Featured Poster
You can use get_browser(): http://php.net/manual/en/function.get-browser.php
But the client can spoof the user agent, so don't trust what you get and always sanitize the data, because an XSS attack can be performed.
davy_yg 2 Posting Whiz
Hi, where to place the codes? I would like to place a long codes such as if browser = (IE) then long-IE-php-html-css-codes else if browser = (firefox) then long-firefox-php-html-css-codes.
<?php
function getBrowser()
{
$u_agent = $_SERVER['HTTP_USER_AGENT'];
$bname = 'Unknown';
$platform = 'Unknown';
$version= "";
//First get the platform?
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)) {
$platform = 'windows';
}
// Next get the name of the useragent yes seperately and for good reason
if(preg_match('/MSIE/i',$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';
$ub = "Chrome";
}
elseif(preg_match('/Safari/i',$u_agent))
{
$bname = 'Apple Safari';
$ub = "Safari";
}
elseif(preg_match('/Opera/i',$u_agent))
{
$bname = 'Opera';
$ub = "Opera";
}
elseif(preg_match('/Netscape/i',$u_agent))
{
$bname = 'Netscape';
$ub = "Netscape";
}
// finally get the correct version number
$known = array('Version', $ub, 'other');
$pattern = '#(?<browser>' . join('|', $known) .
')[/ ]+(?<version>[0-9.|a-zA-Z.]*)#';
if (!preg_match_all($pattern, $u_agent, $matches)) {
// we have no matching number just continue
}
// see how many we have
$i = count($matches['browser']);
if ($i != 1) {
//we will have two since we are not using 'other' argument yet
//see if version is before or after the name
if (strripos($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="?";}
return array(
'userAgent' => $u_agent,
'name' => $bname,
'version' => $version,
'platform' => $platform,
'pattern' => $pattern
);
}
// now try it
$ua=getBrowser();
$yourbrowser= "Your browser: " . $ua['name'] . " " . $ua['version'] . " on " .$ua['platform'] . " reports: <br >" . $ua['userAgent'];
print_r($yourbrowser);
?>
emclondon 38 Junior Poster in Training
based on the code you posted, all you need to do is to include the file in your php page and perform a simple switch to get the result you are after. something like this:
yourpage.php
include('get_browser.php');
$browser=getBrowser();
switch ($browser['name'])
{
case 'Google Chrome':
echo "you are using chrome";
break;
case 'Internet Explorer':
echo "you are using ie";
break;
case 'Mozilla Firefox':
echo "you are using firefox";
break;
default:
break;
}now just a reminder that, if you are looking just to change the CSS based on the browser, this is not the way to do it.
davy_yg 2 Posting Whiz
Not only change the css, but also change the HTML and php based on the browser. How to do so ?
vaultdweller123 32 Posting Pro
you can use javascript
navigator.userAgent davy_yg 2 Posting Whiz
Well, what's the complete codes ?
vaultdweller123 32 Posting Pro
davy_yg 2 Posting Whiz
Well, where to place the:
if browser = (IE) then long-IE-php-html-css-codes else if browser = (firefox) then long-firefox-php-html-css-codes ?
The link only shows the Js codes.
vaultdweller123 32 Posting Pro
you know what you can use @emclodon code, it is much better
<?php
include('get_browser.php');
$browser=getBrowser();
switch ($browser['name'])
{
case 'Google Chrome':
include('your_google_chrome_page.php'); // your separate google chrome page
break;
case 'Internet Explorer':
include('your_ie_page.php'); // your separate ie page
break;
case 'Mozilla Firefox':
include('your_mozilla_page.php'); //your separate mozilla page
break;
default:
}
?> vaultdweller123 32 Posting Pro
or you can put condition on every includes
<html>
<head>
<?php
include('get_browser.php');
$browser=getBrowser();
?>
<?php
switch ($browser['name'])
{
case 'Google Chrome':
echo '<link rel="stylesheet" type="text/css" href="/your_google_chrome_style.css" />';
echo '<script type="text/javascript" src="/your_google_chrome_javascript.js"></script>';
break;
case 'Internet Explorer':
echo '<link rel="stylesheet" type="text/css" href="/your_ie_style.css" />';
echo '<script type="text/javascript" src="/your_ie_javascript.js"></script>';
break;
case 'Mozilla Firefox':
echo '<link rel="stylesheet" type="text/css" href="/your_mozilla_style.css" />';
echo '<script type="text/javascript" src="/your_mozilla_javascript.js"></script>';
break;
default:
}
?>
</head>
<body>
<?php
switch ($browser['name'])
{
case 'Google Chrome':
echo '<p>google chrome content</p>';
break;
case 'Internet Explorer':
echo '<p>Internet Explorer content</p>';
break;
case 'Mozilla Firefox':
echo '<p>Mozilla Firefox content</p>';
break;
default:
}
?>
</body>
</html> davy_yg 2 Posting Whiz
front-page.php
<?php
include('get_browser.php');
$browser=getBrowser();
switch ($browser['name'])
{
case 'Google Chrome':
include('Chrome/front-page.php'); // your separate google chrome page
break;
case 'Internet Explorer':
include('IE/front-page.php'); // your separate ie page
break;
case 'Mozilla Firefox':
include('Mozilla/front-page.php'); // your separate mozilla page
break;
default:
break;
}
?>Parse error: syntax error, unexpected T_STRING in C:\xampp\htdocs\wordpress\wp-content\themes\ocklaw\IE\front-page.php on line 42
line42: include('Mozilla/front-page.php'); // your separate mozilla page
How to fix it ?
vaultdweller123 32 Posting Pro
no the error is in front-page.php that inside the IE folder, what is on line 42?
davy_yg 2 Posting Whiz
no the error is in front-page.php that inside the IE folder, what is on line 42?
line42: include('Mozilla/front-page.php'); // your separate mozilla page
davy_yg 2 Posting Whiz
front-page.php
case 'Google Chrome':
include('Chrome/front-page.php'); // your separate google chrome page
break;
case 'Internet Explorer':Parse error: syntax error, unexpected T_STRING in C:\xampp\htdocs\wordpress\wp-content\themes\ocklaw\IE\front-page.php on line 42
line 42: case 'Internet Explorer':
Why is it ?
pritaeas 2,194 ¯\_(ツ)_/¯ Moderator Featured Poster
It's probably an error in Chrome/front-page.php, check your quotes in that file.
davy_yg 2 Posting Whiz
What's wrong with the quotes ?
pritaeas 2,194 ¯\_(ツ)_/¯ Moderator Featured Poster
The file is probably missing one. Check it!
davy_yg 2 Posting Whiz
Nothing is missing:
I have this file in each folder:
Chrome : front-page.php
IE : front-page.php
Mozzila : front-page.php
cereal 1,524 Nearly a Senior Poster Featured Poster
Check inside IE/front-page.php or post that code. The error is there.
davy_yg 2 Posting Whiz
IE/front-page.php
<?php get_header(); ?>
<html>
<body>
<div id="example"></div>
<script type="text/javascript">
txt = "<p>Browser CodeName: " + navigator.appCodeName + "</p>";
txt+= "<p>Browser Name: " + navigator.appName + "</p>";
txt+= "<p>Browser Version: " + navigator.appVersion + "</p>";
txt+= "<p>Cookies Enabled: " + navigator.cookieEnabled + "</p>";
txt+= "<p>Platform: " + navigator.platform + "</p>";
txt+= "<p>User-agent header: " + navigator.userAgent + "</p>";
document.getElementById("example").innerHTML=txt;
</script>
<?php
echo $_SERVER['HTTP_USER_AGENT'];
?>
<?php
include('get_browser.php');
$browser=getBrowser();
switch ($browser['name'])
{
case 'Google Chrome':
include('your_google_chrome_page.php'); // your separate google chrome page
break;
case 'Internet Explorer':
include('your_ie_page.php'); // your separate ie page
break;
case 'Mozilla Firefox':
include('your_mozilla_page.php'); your separate mozilla page
break;
default:
break;
}
?>
<div id="body">
<div id="bannerContainer">
<div id="banner"></div>
<div id="containerSide">
<div id="slideshow">
<img src="<?php echo get_stylesheet_directory_uri(); ?>/images/banner1.png">
<img src="<?php echo get_stylesheet_directory_uri(); ?>/images/banner2.png">
<img src="<?php echo get_stylesheet_directory_uri(); ?>/images/banner3.png">
</div>
</div>
</div>
<div id="content">
<div id="main-front">
<div id="main">
<h4>LATEST NEWS</h4>
<div class="post">
<?php query_posts('posts_per_page=3'); ?>
<?php if (have_posts()) : ?>
<?php while (have_posts()) : the_post(); ?>
<p style="border-bottom: 2px dotted #FF0000; width: 650px;"></p><br />
<img src="<?php echo get_stylesheet_directory_uri(); ?>/images/pic1.png" ALT="picture1" ALIGN=LEFT><div id="ptitle"><?php the_title(); ?><font color="black"> - <?php the_time('d'); ?> <?php the_time('M'); ?> <?php the_time('Y'); ?></font></div>
<p><?php the_content(''); ?>... <a href="#">read more ></a></p>
<?php endwhile; ?>
<?php endif; ?>
</div>
</div>
</div>
<div id="side-main">
<?php get_sidebar(); ?>
</div>
</div>
</div>
<?php get_footer(); ?>
</body>
</html> cereal 1,524 Nearly a Senior Poster Featured Poster
Default case in switch() can't be blank, so or you remove it or you assign an action.
davy_yg 2 Posting Whiz
This is not blank ?
switch ($browser)
cereal 1,524 Nearly a Senior Poster Featured Poster
I'm referring to line 45 and 46, if this is empty then you get an error, if you define a default case you have also to insert some code:
default:
echo 'default case'; # example
break;bye :)
pritaeas 2,194 ¯\_(ツ)_/¯ Moderator Featured Poster
@cereal: Where do you base this on? Switch with empty default executes fine on my system.
cereal commented: you're right, my mistake +8
davy_yg 2 Posting Whiz
front-page.php
<?php
include('get_browser.php');
$browser=getBrowser();
switch ($browser['name'])
{
case 'Google Chrome':
include('Chrome/front_page.php'); // your separate google chrome page
break;
case 'Internet Explorer':
include('IE/front_page.php'); // your separate ie page
break;
case 'Mozilla Firefox':
include('Mozilla/front_page.php'); //your separate mozilla page
break;
default:echo
'default case'; # example
break;
}
?>Warning: include(IE/front_page.php) [function.include]: failed to open stream: No such file or directory in C:\xampp\htdocs\wordpress\wp-content\themes\ocklaw\front-page.php on line 40
Warning: include() [function.include]: Failed opening 'IE/front_page.php' for inclusion (include_path='.;C:\xampp\php\PEAR') in C:\xampp\htdocs\wordpress\wp-content\themes\ocklaw\front-page.php on line 40
emclondon 38 Junior Poster in Training
mate, It would be easy if you let us know what you are trying to do, and also if you could share the whole source, it would be easy to point out what's kicking your boots away.
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