When I run the code below, the $ENV{'HTTP_USER _AGENT'} is coming up blank, I'm saved the file under .pl and .cgi extensions and still I can't display the browser name.
For this reason the code below goes straight to the else statement, In actual fact I'm using IE.
Where I'm I going wrong? - #!/usr/bin/perl
-
-
print "Content-type:text/html\n\n";
-
print "<html><head><title>Welcome</title></head>\n";
-
print"<body>\n";
-
print "Browser: $ENV{'HTTP_USER_AGENT'}<p>\n"; # $ENV is blank here!!
-
-
if ($ENV{'HTTP_USER_AGENT'}=~/MSIE/) {
-
print "Your using <b>IE</b><p>\n";
-
} elsif ($ENV{'HTTP_USER_AGENT'}=~/Mozilla/) {
-
print "Your using <b>Netscape!</b><p>\n";
-
} else {
-
print "Your using a browser other than IE & Mozilla\n";
-
}
-
-
print "</body></html>\n";
7  4153  miller 1,089
Recognized Expert Top Contributor
Print out all your environment variables and see what they contain. Maybe it's a casing problem. -
#!/usr/bin/perl -wT
-
# Print a formatted listof all the environment variables
-
-
use strict;
-
-
print "Content-type: text/html\n\n";
-
-
foreach my $key (sort keys %ENV) {
-
print "<p><b>$key</b><br>";
-
print $ENV{$key};
-
}
-
- Miller
All the environmental variables are printing as normal such as Homepath, processor_ident ifier, OS etc.
However there is no 'HTTP_USER_AGEN T' in the list of Environmental variables.
numberwhun 3,509
Recognized Expert Moderator Specialist
I can vouch that it doesn't print that variable on my Windows machine or my Solaris box either. I think that this script needs to be run through Apache to get that environment variable. Actually, do you have Apache running on this system? It would probably set that variable.
Regards,
Jeff
I have Apache is running successfully and still I get the problem.
numberwhun 3,509
Recognized Expert Moderator Specialist
It may be that this script would need to be run via a web page to determine what browser is accessing the site. It may not be something that works via the command line. (Yes, I am just speculating here, considering the variable is not set).
Regards,
Jeff
Resolved now, the problem was due to the Shebang line not pointing to the perl.exe and also I didn't know the URL to run the script locally, the URL to run the script locally is: http://localhost/cgi-bin/browser.cgi
Thanks Numberwhun for your help.
Cheers
numberwhun 3,509
Recognized Expert Moderator Specialist
Your welcome, glad we could all help.
Regards,
Jeff
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