Loading a language file in oo php -

so new oo php , i-m building sample app learning purpses , 1 thing must load language file according settings code, discover below divided between 2 classes , settings class witch should load language file , class in case "contact" witch should read array in language files , display propper message. settings class lang variable sets default language can take 2 values @ moment : ro- romanian , en - english ,

    class settings {   static public $lang = 'ro';   static public $load;    static public function get_language()    {     if(self::$lang == 'ro')     {       self::$load = require 'ro.php';     }     elseif(self::$lang == 'en')     {      self::$load = require 'en.php';     }     return self::$load;    }  } 

the second class :

class contact extends settings {    //proprietati     public $nume;    public $subiect;    public $mesaj;    public $dincs;      //comportament - metode     public function __construct()    {      //$this->dincs = 'din construct';      parent::get_language();    }      public function write_file()    {       if(empty($this->nume))      {        return $mess['name_error'];      }      else      {        $fp = fopen('data.txt', 'w');        fwrite($fp, $this->nume.".".$this->subiect .".". $this->mesaj."|".$this->dincs ."|".parent::$load);        fclose($fp);         return $mess['file_written'];      }    }  } 

a sample language file:

   $mess = array ("name_error"  => "you must insert name",                   "file_written" => "the file has been written",     ); 

i have looked on google , , tried other stuff , can't seem work , , may because approaching problem incorectly. plese help.

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class settings {     protected $language = 'ro';     protected $load;      public function setlanguage($language = 'ro')     {         $this->language = $language;          // file_get_contents()         $this->load = require($this->language . '.php');     }      public function getlanguage()     {         return $this->language;     }  }  class contact extends settings  {    protected $name;    protected $subject;    protected $message;    protected $dincs;    protected $settingsobject;     // set properties below...     public function setname($name)    {         $this->name = $name;    }        public function setsubject($subject)    {         $this->subject = $subject;    }        public function setmessage($message)    {         $this->message = $message;    }        public function setdincs($dincs)    {         $this->dincs = $dincs;    }     // properties...    public function getname()    {         return $this->name;    }     // function accepts instance of settings parameter    public function setsettingsobject(settings $settings)    {             $this->settingsobject = $settings;    }     public function writecontentstofile()    {         // if there nothing in name, throw new exception         if (empty($this->name))         {             throw new exception('name has not been set! set name before calling '. __method__);         }         else         {            // file            $fp = fopen('data.txt', 'w');             // formatted string            $contents = sprintf('%s . %s . %s | %s | %s', $this->name, $this->subject, $this->message, $this->dincs, $this->settingsobject->getlanguage());             // write file            fwrite($fp, $contents);             // close handler            fclose($fp);             return ('file written! contents written: ' . $contents);         }     } }   // instantiate settings $settings = new settings(); $settings->setlanguage('en');  // instantiate contact , set settings object $contact = new contact(); $contact->setname('joe smith'); // if not set, ::writecontentstofile throw exception $contact->setsettingsobject($settings);  // try , catch exception ::writecontentstofile may throw try  {     echo $contact->writecontentstofile(); } catch (exception $exception) {     var_dump($exception); } 

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