Detecting value via link value

[toplisek]

I like to know how to detect link value for language.

Sample code:

$languages1 = array('English' => 'en', 'French' => 'fr');

if(in_array($_GET['lingual'], $languages1)) {
  $_SESSION['language'] = $_GET['lingual'];
}

Main purpose is to hide strange values inside search engines like
href="main.php?lingual=en"
<ul>
<li> <a title="en" href="">en</a></li> |
<li> <a title="fr" href="">fr</a></li> |
</ul>

How to improve this code or make it corrected?

[whitespace]

Main purpose is to hide strange values inside search engines

I'm not really sure what you mean. The code you have seems OK. You need the language (ID) in the URL somewhere for Google to be able to index it. Whether that is as a query string parameter (like you have) or as a "pretty / user friendly" URL (eg. "example.com/en/main") - it doesn't matter as far as the search engine is concerned (Google at least).

(The only "improvement" I'd make to your language lookup is to make the language-id the index of the array and test with isset(), rather than in_array().)

[toplisek]

I have the following link without href:
<ul>
<li> <a title="en" href="href="http://www.mydomain/">English</a></li> |
<li> <a title="fr"href="http://www.mydomain/">French</a></li> |
</ul>

if(isset($_GET['lingual'])) {
if($_GET['lingual'] == 'English') {$_SESSION['language'] = 'en';}
if($_GET['lingual'] == 'French') {$_SESSION['language'] = 'fr';}
}
How to GET value English not from href like http://www.example.com/index.php?lingual=en

Need help.

[whitespace]

You can't do what you are trying to do.

In order to get the language value server-side, you need to either use a URL parameter (GET) like you mentioned above. Or submit the data via a form (POST) (or perhaps using AJAX - GET/POST) - but this is not good for SEO, if that is a concern.

This sounds exactly the same as neophyte's recent question/thread:
[webmasterworld.com...]

[toplisek]

I have read. Interesting reading. If you use form and get language than search engine will miss pages for all languages beside default.

So, without using path href like http://www.example.com/index.php?lingual=en
it will be SEO mistake.