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<?php
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/**
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* @category WebsiteBaker
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* @package WebsiteBaker_Core
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* @author Werner v.d.Decken
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* @copyright WebsiteBaker Org e.V.
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* @license http://www.gnu.org/licenses/gpl.html
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* @version $Id$
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* @filesource $HeadURL$
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* @since Datei vorhanden seit Release 2.8.4
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* @lastmodified $Date$
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* @deprecated 2013/02/19
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*/
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class ModLanguage {
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// @var string 2 upercase chars for hardcoded system default language
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private $_sSystemLanguage = 'EN';
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// @var string 2 upercase chars for default fallback language
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private $_sDefaultLanguage = '';
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// @var string 2 upercase chars for current active language
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private $_sCurrentLanguage = '';
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// @var string full directory with trailing slash to search language files in
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private $_sLanguageDirectory = '';
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// @array list to hold the complete resulting translation table
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private $_aLanguageTable = array();
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// @array list of all loaded/merged languages
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private $_aLoadedLanguages = array();
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// @boolean set to TRUE if language is successfully loaded
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private $_bLoaded = false;
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// @object hold the Singleton instance
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private static $_oInstance = null;
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/**
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* prevent class from public instancing
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*/
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final protected function __construct() { }
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/**
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* prevent from cloning existing instance
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*/
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final private function __clone() {}
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/**
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* get a valid instance of this class
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* @return object
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*/
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static public function getInstance() {
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if( is_null(self::$_oInstance) ) {
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$c = __CLASS__;
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self::$_oInstance = new $c;
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}
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return self::$_oInstance;
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}
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/**
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* return requested translation for a key
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* @param string $sLanguageKey 2-uppercase letters language code
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* @return string found translation or empty string
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* @throws TranslationException
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*/
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public function __get($sLanguageKey)
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{
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if($this->_bLoaded) {
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$sRetval = (isset($this->_aLanguageTable[$sLanguageKey])
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? $this->_aLanguageTable[$sLanguageKey] : '{missing: '.$sLanguageKey.'}');
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return $sRetval;
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}
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$msg = 'No translation table loaded';
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throw new TranslationException($msg);
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}
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/**
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* returns the whoole language array for use in templateengine
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* @return array
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* @throws TranslationException
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*/
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public function getLangArray()
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{
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if($this->_bLoaded) {
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return $this->_aLanguageTable;
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}
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$msg = 'No translation table loaded';
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throw new TranslationException($msg);
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}
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/**
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* set language and load needed language file
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* @param string $sDirectory full path to the language files
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* @param string $sLanguage 2 chars current active language code
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* @param string $sDefault 2 chars default fallback language code
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* @throws SecDirectoryTraversalException [global exception]
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* @throws TranslationException [private exception]
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*/
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public function setLanguage($sDirectory, $sCurrentLanguage, $sDefaultLanguage = 'EN')
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{
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// sanitize arguments
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$sBasePath = realpath(dirname(dirname(__FILE__)));
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$sLangDir = realpath($sDirectory);
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if(preg_match('/^'.preg_quote($sBasePath, '/').'/', $sLangDir)) {
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$sLangDir = rtrim(str_replace('\\', '/', $sLangDir), '/').'/';
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$sCurrentLanguage = strtoupper($sCurrentLanguage);
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$sDefaultLanguage = strtoupper($sDefaultLanguage);
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// check if the requested language is not already loaded
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if($this->_sLanguageDirectory != $sLangDir ||
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$this->_sCurrentLanguage != $sCurrentLanguage ||
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$this->_sDefaultLanguage != $sDefaultLanguage)
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{
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// now load and merge the files in order SYSTEM - DEFAULT - CURRENT
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$this->_aLanguageTable = array();
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// at first load DEFAULT_LANGUAGE
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$this->_loadLanguage($sLangDir, $sDefaultLanguage);
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// at second merge CURRENT_LANGUAGE to front if not already loaded
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if(!in_array($sCurrentLanguage, $this->_aLoadedLanguages)) {
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$this->_loadLanguage($sLangDir, $sCurrentLanguage);
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}
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// at last merge SYSTEM_LANGUAGE to background if not already loaded
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if(!in_array($this->_sSystemLanguage, $this->_aLoadedLanguages)) {
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$this->_loadLanguage($sLangDir, $this->_sSystemLanguage, true);
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}
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// if no predefined language was fond, search for first available language
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if(sizeof($this->_aLanguageTable) == 0) {
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// if absolutely no language was fond, throw an exception
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if(false !== ($sRandomLanguage = $this->_findFirstLanguage($sLangDir))) {
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$this->_loadLanguage($sLangDir, $sRandomLanguage);
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}
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}
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// remember last settings
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$this->_sLanguageDirectory = $sLangDir;
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$this->_sCurrentLanguage = $sCurrentLanguage;
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$this->_sDefaultLanguage = $sDefaultLanguage;
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}
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if(!($this->_bLoaded = (sizeof($this->_aLanguageTable) != 0))) {
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$msg = 'unable to find valid language definition file in<br />';
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$msg .= '"'.str_replace($sBasePath, '', $this->_sLanguageDirectory).'"';
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throw new TranslationException($msg);
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}
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$this->_bLoaded = true;
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}else {
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throw new SecDirectoryTraversalException($sLangDir);
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}
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}
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/**
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* load language from given directory
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* @param string $sLangDir
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* @param string $sLanguage
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*/
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private function _loadLanguage($sLangDir, $sLanguage, $bLoadSystemLanguage = false)
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{
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if(is_readable($sLangDir.$sLanguage.'.php')) {
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$aTemp = $this->_importArrays($sLangDir.$sLanguage.'.php');
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if($bLoadSystemLanguage) {
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$this->_aLanguageTable = array_merge($aTemp, $this->_aLanguageTable);
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}else {
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$this->_aLanguageTable = array_merge($this->_aLanguageTable, $aTemp);
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}
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$this->_aLoadedLanguages[] = $sLanguage;
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}
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}
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/**
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* find first available language in given directory
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* @param string $sLangDir the directory to scan for language files
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* @return string returns the 2 char language code or FALSE if search fails
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*/
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private function _findFirstLanguage($sLangDir)
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{
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// search for first available and readable language file
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$sRetval = false;
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if(is_readable($sLangDir)) {
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$iterator = new DirectoryIterator($sLangDir);
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foreach ($iterator as $fileinfo) {
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if(!preg_match('/^[A-Z]{2}\.php$/', $fileinfo->getBasename())) { continue; }
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$sLanguageFile = $fileinfo->getPathname();
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if(is_readable($sLanguageFile)) {
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$sRetval = basename($sLanguageFile, '.php');
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break;
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}
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}
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}
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return $sRetval;
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}
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/**
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* import key-values from language file
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* @param string $sLanguageFile
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* @return array of language definitions
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*/
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private function _importArrays($sLanguageFile)
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{
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include($sLanguageFile);
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$aAllVars = get_defined_vars();
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$aLangSections = array();
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$aLanguageTable = array();
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foreach($aAllVars as $key=>$value) {
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// extract the names of arrays from language file
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if(is_array($value)) {
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$aLangSections[] = $key;
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}
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}
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foreach($aLangSections as $sSection) {
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// walk through all arrays
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foreach(${$sSection} as $key => $value) {
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// and import all found translations
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$aLanguageTable[$sSection.'_'.$key] = $value;
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}
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}
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return $aLanguageTable;
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}
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} // end class Translate
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/**
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* Exception class for Translation
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*/
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//class TranslationException extends AppException {}
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