<?php echo $Translate->text("Name"); ?>

<h1> <?php echo $Translate->text(Campus); ?> </h1>

<p style="text-align:justify;">
  <?php echo $Translate->text(126); ?>
</p>

<p style="text-align:justify;">
  <?php echo $Translate->text(129); ?>
</p>

<a href="<?php $Link->create("campus/about"); ?>">
  <h2 class="bodymenu"><?php echo $Translate->text(About); ?> </h2>
</a>
<p style="text-align:justify;">
  <?php echo $Translate->text(146); ?>
</p>

<a href="<?php $Link->create("campus/learning_center"); ?>">
  <h2 class="bodymenu"><?php echo $Translate->text(Learning_center); ?> </h2>
</a>
<p style="text-align:justify;">
  <?php echo $Translate->text(147); ?>
</p>

<a href="<?php $Link->create("campus/residence"); ?>">
  <h2 class="bodymenu"><?php echo $Translate->text(Residence); ?> </h2>
</a>
<p style="text-align:justify;">
  <?php echo $Translate->text(128); ?>
</p>

<?php echo _("Name"); ?>

public function SetDomain( $path )
{
    define( 'DOMAIN', 'messages' );
    bindtextdomain( DOMAIN, $path );
    bind_textdomain_codeset( DOMAIN, "UTF-8" );
    textdomain( DOMAIN );
}

<?= _("Name"); ?>

public $aStrings = array();

$this->aStrings[] = $arg;

print_r($Translate->aStrings);

class MyTranslate extends Translate {
  public $texts = array();
  public function text($which) {
    $this->texts[] = $which;
    return parent::text($which);
  }
}

$Translate=new MyTranslate($User->Language);

ob_start();
require('/path/to/other/page');
ob_end_clean();

var_dump($Translate->texts);

<?php
$lang["Name"]               = "Name";
$lang["Address"]            = "Address";
?>

<?php
$lang["Learning"]               = "Learning";
$lang["Residence"]          = "Residence";
?>

class Translate {

    public $_text= array(); // Change it into private properties coz you create
// text method for get the value, I set it public just for easy to debug it.
    private $_language;

    function __construct($language){ // Set Language
        $this->_language= $language;
    }

    public function create($page){ // Get Language File
        // $page= campus/about change into this campus.about
        // Get language file Ex: english/campus.about.php
        require($this->_language.'/'.$page.'.php');
        $this->_text= array_merge($this->_text, $lang);
    }

    public function text($text){ // Display Keywords
        echo $this->_text[$text];
    }
}
$Translate= new Translate('english');
$Translate->create('campus.about');
print_r($Translate->_text);
$Translate->create('campus.learning_center');
print_r($Translate->_text);