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Knowing the languages selected in the browser of our visitors may be a very
important data we may used to redirect the user to a specific page in the
corresponding language, or to display specific information directed to the user
(as for example the most suitable ad).
The basic command we will use to know the languages selected in the browser
is this one:
Request.ServerVariables("HTTP_ACCEPT_LANGUAGE")
In the table bellow we have use an script to identify the languages
selected in your browser. You may get the complete code here.
The list of languages may be obtained here.
The languages selected in your browser:
English/United
Satates
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In the table bellow are displayed the different values for
Request.ServerVariables("HTTP_ACCEPT_LANGUAGE") obtained from visitors to
my home page.
Values for Request.ServerVariables("HTTP_ACCEPT_LANGUAGE")
obtained from 164 visitors to codedcode.com main page:
84 en-us
9 en-gb
9 de
7 nl
5 en-us,zh;q=0.5
4
es
4 en
3 nl-be
3 it
3 eu,en,es
3 en-za
3
en-us,el;q=0.5
3 en-ie
2 pt-br
2 fr-ca
2 es-mx
2
en-us,hi;q=0.5
1 zu;q=0.3
1 th
1 sv
1 sl
1 ro
1 pl
1 in
1 he
1 fr-ch
1 fr
1 en-ca
1 en-au
1
en;q=0.7,
1 en,fr-CA
1 de-ch
1
bg |
Redirecting visitors to lenguage
specific pages
Let suppose we have our information in English and Spanish, and we will also
suppose spanish is not the more used language by our visitors (our default
language will be English)
By using Request.ServerVariables("HTTP_ACCEPT_LANGUAGE") we may know
whether Spanish is one of the languages selected in the browser of our visitor.
If it is so, we may consider to situations:
- Spanish is the first language (p.e:
Request.ServerVariables("HTTP_ACCEPT_LANGUAGE") value is "es,en")
- Spanish is not the first langauge (p.e:
Request.ServerVariables("HTTP_ACCEPT_LANGUAGE") value is "en,es")
We
may consider also two other situations:
- If Spanish is in the list, the user knows Spanish
- The user knows Spanish only when Spanish is the first langauge in
the list
Option 1 (If Spanish is in the list, the user
knows Spanish, so we will redirect the user to the page in Spanish)
| defauldpage.asp |
<% if Instr(1,Request.ServerVariables("HTTP_ACCEPT_LANGUAGE"),
"es",1)>0 then
response.redirect("spanishpage.asp")
end if
%>
<html>
<title>Page into English, my defauld
language</title>
<body>
Page into English, my defauld language
</body>
</html> |
In line 1 we will check whether substring "es" is included in value for
Request.ServerVariables("HTTP_ACCEPT_LANGUAGE"). Our comparation will start in
character number 1 of the string, and it will not be case sensitive (see Compare strings
page for explanation).
If comparation is true the user will be redirected to the page in Spanish
(line 2). When redirection is performed, the rest of information in the page is
not transferred to the clients browser. If the comparation is false, the
remaining information in the page is send to the client.
Option 2 (Spanish is in the list, but the user only knows
Spanish when this language is the first one in the list. If it is so, we will
redirect the user to the page in Spanish)
| defauldpage.asp |
<% if Mid(Request.ServerVariables("HTTP_ACCEPT_LANGUAGE"),
1,2)="es" then
response.redirect("spanishpage.asp")
end if %>
<html>
<title>Page into English, my defauld
language</title>
<body>
Page into English, my defauld language
</body>
</html> |
In line 1 we will get the two first positions for
Request.ServerVariables("HTTP_ACCEPT_LANGUAGE") and we will check whether its
value is "es" (see Manipulate
Strings page for explanation).
If comparation is true the user will be redirected to the page in Spanish
(line 2). When redirection is performed, the rest of information in the page is
not transferred to the clients browser. If the comparation is false, the
remaining information in the page is send to the client.
Showing lenguage specific ads or
text
This example will work basically in the same way shown for previous example.
In this case we will assume that if Spanish is in the list of lenguages
selected in the browser, the user knows Spanish, so we will display an ad or
text in Spanish. In the script bellow we will show ads:
| languagespecificad.asp |
<html>
<title>My page</title>
<body>
<% if Instr(1,Request.ServerVariables("HTTP_ACCEPT_LANGUAGE"),
"es",1)>0 then %>
<a href=http://www.link1.com><img
scr=spanishad.gif></a>
<% else %>
<a href=http://www.link2.com><img
scr=englishad.gif></a>
<% end if %>
My info
</body>
</html> |
Code for ad in Spanish will be the red one (if comparation is true) and code
for ad in English will be in magenta (if comparation is false).
In order to
display text instead of ads or figures, we just need to substitute the
corresponding code.
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