i18n.inc.php

一个页面界面的邮件程序

<?php
	require_once("constants.inc.php");

	$languageFromDb = "";
	
	// If the user is logged in, get user's language preferences from database
	if (isset($_SESSION['user'])) {
		$sql = "SELECT language FROM `user` WHERE id = '". $_SESSION['user'] ."'";
		$result = mysql_query($sql) or die("Error in SQL : " . $sql);

		if ($result && mysql_num_rows($result) == 1) {	
			if ($line = mysql_fetch_assoc($result)) {
				$languageFromDb = $line['language'];
			}
		}
	}

	$lang = "";
	if (isset($_GET['change_language']) || isset($_POST['change_language'])) {
		// If the action 'change_language' is sent by GET/POST
		if (isset($_GET['change_language']))
			$lang = $_GET['change_language'];
		else if (isset($_POST['change_language']))
			$lang = $_POST['change_language'];
	} else if($languageFromDb != "") {
		// Language from DB
		$lang = $languageFromDb;
	} else if (isset($_SESSION['lang'])) {
		// If the language is setted in session
		$lang = $_SESSION['lang'];
	} else {
		// Last choice, choose language from the user-agent (ex : en-us,en;q=0.5) 
		$tabAcceptLang = explode(";", $_SERVER['HTTP_ACCEPT_LANGUAGE']);
		$iAcceptLang = 0;
		while($lang == "" && $iAcceptLang < sizeof($tabAcceptLang)) {
			$tabLang = explode(",", $tabAcceptLang[$iAcceptLang]);
			$iLang = 0;
			while($lang == "" && $iLang < sizeof($tabLang)) {
				switch (strtolower($tabLang[$iLang])) {
					case "en":
					case "en-us":
					case "en-gr":
						$lang = ENGLISH;
						break;
					case "fr":
					case "fr-fr":
						$lang = FRENCH;
						break;
					case "de":
						$lang = GERMAN;
						break;
					case "es":
					case "es-ES":
						$lang = SPANISH;
						break;
					case "pt":
						$lang = POLISH;
						break;
					default:
				}
				$iLang++;
			}
			$iAcceptLang++;
		} 
	}

	// If a problem append, set to the default language : english; 
	if ($lang == "" || strlen($lang) != 2)
		$lang = ENGLISH;

	// Refreshing session
	$_SESSION['lang'] = $lang;

	// If the user is logged in and has changed the language, saving the language
	if (isset($_SESSION['user'])) {
		$sql = "UPDATE `user` SET language = '". $lang ."' WHERE id = '". $_SESSION['user'] ."'";
		$result = mysql_query($sql) or die("Error in SQL : " . $sql);
	}		

	
	// Setting style for link href
	$languageStyle[ENGLISH] = $languageStyle[FRENCH] = $languageStyle[GERMAN] = $languageStyle[SPANISH] = $languageStyle[POLISH] = "";
	switch ($lang) {
		case FRENCH:
			$languageStyle[FRENCH] = "languageSelected";
			break;
		case ENGLISH:
			$languageStyle[ENGLISH] = "languageSelected";
			break;
		case GERMAN:
			$languageStyle[GERMAN] = "languageSelected";
			break;
		case SPANISH:
			$languageStyle[SPANISH] = "languageSelected";
			break;
		case POLISH:
			$languageStyle[POLISH] = "languageSelected";
			break;
	}

	// loading messages
	require_once("translations/common.inc.php");
	require_once("translations/". $lang .".inc.php");
?>