Solved

Display different images based on the browser

Posted on 2004-08-29
8
247 Views
Last Modified: 2006-11-17
I'm sure this is an easy qusetion for anything who knows anything about PHP... but, I don't.

I want a PHP script that will display a different image (ie.png, opera.png, firefox.png etc..), depending on what browser the visitor is using.
I want the script to be able to identify 5 different browsers: IE, Firefox, Mozilla, Safari and Opera and I want an alternative image if the user is not using either of those 5 browsers.

By the way opera has a habit of spoofing itself as MSIE, but the user-agent string always contains the word opera somewhere.

This page has something similiar to the Javascript code that I was using:
http://www.quirksmode.org/js/detect.html
0
Comment
Question by:porcupine
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 5
  • 3
8 Comments
 
LVL 55

Expert Comment

by:Jaime Olivares
ID: 11926304
You have to test User Agent environment variable:

$ua=getenv("HTTP_USER_AGENT");
0
 
LVL 1

Author Comment

by:porcupine
ID: 11926320
Yeah I know that, but I'm completely new to PHP and I don't know how to go about actually making the script.
0
 
LVL 55

Expert Comment

by:Jaime Olivares
ID: 11926337
Something like:

$ua = strtoupper(getenv("HTTP_USER_AGENT"));

if (strstr($ua,"MSIE")) {
   $image = "ie.png";
} elseif (strstr($ua,"MOZILLA") {
   $image = "mozilla.png";
} elseif (strstr($ua,"OPERA") {

// etcetera
} else {
   $image = "other.png";
}

echo ("<IMG SRC='".$image."'>");
0
Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
LVL 55

Expert Comment

by:Jaime Olivares
ID: 11926351
Sorry, missing some parenthesis:

<?php
$ua = strtoupper(getenv("HTTP_USER_AGENT"));

if (strstr($ua,"MSIE")) {
   $image = "ie.png";
} elseif (strstr($ua,"MOZILLA")) {
   $image = "mozilla.png";
} elseif (strstr($ua,"OPERA")) {

// etcetera
} else {
   $image = "other.png";
}

echo ("<IMG SRC='".$image."'>");


?>


Just add correct search strings.
0
 
LVL 1

Author Comment

by:porcupine
ID: 11926499
The problem with the above code is that for example the Opera string is:
MOZILLA/4.0 (COMPATIBLE; MSIE 6.0; WINDOWS NT 5.1) OPERA 7.51 [EN]

Which contains "MOZILLA", "MSIE" and "OPERA"

So in Opera the image displayed is not correct.
0
 
LVL 55

Expert Comment

by:Jaime Olivares
ID: 11926510
Just evaluate Opera first, IE second and Mozilla third.
0
 
LVL 55

Accepted Solution

by:
Jaime Olivares earned 125 total points
ID: 11926532
Try with:

if (strstr($ua,"OPERA")) {
   $image = "opera.png";
} elseif (strstr($ua,"MSIE")) {
   $image = "msie.png";
} elseif (strstr($ua,"NETSCAPE")) {
   $image = "netscape.png";
} elseif (strstr($ua,"MOZILLA")) {
   $image = "mozilla.png";
} else {
   $image = "other.png";
}

also you can use regex but will be a bit messy
0
 
LVL 1

Author Comment

by:porcupine
ID: 11926597
Yeah, that works perfectly, Thank you.
0

Featured Post

WordPress Tutorial 4: Recommended Plugins

Now that you have WordPress installed, understand the interface, and know how to install new parts, let’s take a look at our recommended plugins.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Build an array called $myWeek which will hold the array elements Today, Yesterday and then builds up the rest of the week by the name of the day going back 1 week.   (CODE) (CODE) Then you just need to pass your date to the function. If i…
Introduction This article is intended for those who are new to PHP error handling (https://www.experts-exchange.com/articles/11769/And-by-the-way-I-am-New-to-PHP.html).  It addresses one of the most common problems that plague beginning PHP develop…
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions. Consider email address RFCs: Look at HTML5 form input element (with type=email) regex pattern: T…
The viewer will learn how to count occurrences of each item in an array.

628 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question