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90 lines
2.7 KiB
PHP
90 lines
2.7 KiB
PHP
<?php
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class LanguageManager {
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private $languageDirectory,
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$defaultLanguage;
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public function __construct($languageDirectory, $defaultLanguage) {
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$this->setLanguageDirectory($languageDirectory);
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$this->setDefaultLanguage($defaultLanguage);
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}
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public function getLanguageDirectory() {
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return $this->languageDirectory;
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}
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private function setLanguageDirectory($languageDirectory) {
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$this->languageDirectory = $languageDirectory;
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}
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public function getDefaultLanguage() {
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return $this->defaultLanguage;
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}
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private function setDefaultLanguage($defaultLanguage) {
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$this->defaultLanguage = $defaultLanguage;
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}
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public function includeLanguage($language = null) {
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$language = ($language && $this->isValidLanguage($language)) ? $language : $this->getUserLanguage();
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if(!$this->checkCookie($language)) {
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$this->createCookie($language);
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}
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return $this->getLanguageDirectory() . '/' . $this->formatLanguageFileName($language);
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}
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public function printLanguageOptions() {
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$optionsString = '';
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foreach($this->getLanguages() as $language) {
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$optionsString .= "<option id='" . $language . "' value='" . $language . "' " . ($language == $this->getUserLanguage() ? 'selected' : '') . "> </option>\n";
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}
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return $optionsString;
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}
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private function getLanguages() {
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$languages = array();
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foreach(scandir($this->getLanguageDirectory()) as $language) {
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$language = $this->formatLanguageName($language);
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if($this->isValidLanguage($language)) {
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$languages[] = $language;
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}
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}
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return $languages;
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}
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private function getUserLanguage() {
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if(isset($_GET["lang"]) && $this->isValidLanguage($_GET["lang"])) {
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$language = $_GET["lang"];
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} else if(isset($_COOKIE["lang"]) && $this->isValidLanguage($_COOKIE["lang"])) {
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$language = $_COOKIE["lang"];
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} else {
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$language = $this->getDefaultLanguage();
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}
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return $language;
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}
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private function checkCookie($language) {
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return (isset($_COOKIE['lang']) && $_COOKIE['lang'] == $language);
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}
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private function createCookie($language) {
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setcookie("lang", $language, time()+31536000);
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header("Location: ".strtok($_SERVER['REQUEST_URI'], '?'));
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}
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private function isValidLanguage($language) {
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$languageFile = $this->formatLanguageFileName($language);
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return (file_exists($this->getLanguageDirectory() . '/' . $languageFile) && is_file($this->getLanguageDirectory() . '/' . $languageFile) && preg_match("/^([a-z-]{2,5})$/i", $language));
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}
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private function formatLanguageFileName($language) {
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return $language . '.php';
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}
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private function formatLanguageName($language) {
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return str_replace('.php', '', $language);
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}
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}
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