language switch for LanguageLocalizedURL module example

language_switch.php

<?php

/* somehwere in the top of your template code */

// save current user language
$user_lang = $user->language;

// get the language name example
$curr_langname = $user_lang->name == 'default' ? 'en' : $user_lang->name;

// get the gateway language page /en/ or /de/ example
$curr_langpage = $pages->get("/$curr_langname/");


/**
 * construct a language switch example
 */
$lang_switch = '';
foreach($languages as $lang) {

	// change user language to get localized urls for each language page
	$user->language = $lang;

	$langname = $lang->isDefault() ? 'en' : $lang->name;
	$gateway = $pages->get("/$langname/");

	// is language published or is it homepage?
	// language_published is a page field (references gateway pages) with inputfield checkboxes
	// language_published this is a page array and we check if the array "has" the gateway page checked
	// (which makes the language segment /en/ and /de/ and defines language of the viewed page)
	if($page->language_published->has($gateway)) {
		$class = $curr_langname == $langname ? ' class="on"' : '';
		$lang_switch .= "<li$class><a href='$page->url'>$langname</a></li>";
	}
	// output on bottom of this file
}
// strip off "|"
$lang_switch = trim($lang_switch, "| ");


// assign current language back to user
$user->language = $user_lang;

/* ------------------------------------------------------------------------------------------------- */

/* somewhere in your template output switch markup */
echo "<ul class='language_switch'>$lang_switch</ul>";