how to detect current language to show the other(s) in the menu

Question

I'm using i8n to host a bilingual site and I only like to display the inactive language in the top bar. What php code do I need to detect the current language so I place the inactive language in the template? Thanks:

<a href=
<?php
global $language; 
if (($language -> name) == 'English') { 
print "\"http://www.mangallery.net/fr\"".">french";
} else {
print '"http://www.mangallery.net"'.">english";
}
?>
</a>

Answer 1

Use the global variable $language

https://api.drupal.org/api/drupal/developer%21globals.php/global/language/7

Answer 2

If you are planning to use the existing Language switcher block of Drupal which links directly to the translated page(s) on a multilingual website, here is some sample code to remove the active language from the list.

You can add this code in the template.php of your theme. Replace YOURTHEME with the name of your theme and don't forget to clear the cache.

function YOURTHEME_preprocess_links(&$variables)
{
    if (!isset($variables['attributes']['class']['0'])) {
        return false;
    }

    // Only alter links for the language switcher block
    if ($variables['attributes']['class']['0'] === 'language-switcher-locale-url') {
        global $language;

        // Remove active language from the list
        if (isset($variables['links'][$language->language])) {
            unset($variables['links'][$language->language]);
        }
    }
}