使用$GLOBALS和global关键字的问题

我有这个代码在actions.class.php

public function executeListmatches(sfWebRequest $request)
{
    $form_values = $request->getParameter('match_form', array());    
    global $gender_id2 = $form_values['gender2'];
    global $age1 = $form_values['age1'];
    $age2 = $form_values['age2'];
    $province_id = $form_values['id'];
    echo "in list matches ".$gender_id2."  ".$age1."   ".$age2."   ".$province_id;
    $this->pager = $this->setupPager();
    $this->matching_rows = RcProfileTablePeer::getAllBySelection($gender_id2,$age1,$age2,$province_id);
    return sfView::SUCCESS;
}     

然后

protected function setupPager()
{
    echo "in pager ".$gender_id2."  ".$age1."   ".$age2."   ".$province_id;
    $pager = new sfPropelPager('RcProfileTable', 10);
    $pager->setCriteria(RcProfileTablePeer::getAllBySelection($GLOBALS['gender_id2'],$GLOBALS['age1'],$GLOBALS['age2'],$province_id));
    $pager->setPage($this->getRequestParameter('page', 1));
    $pager->init();
    return $pager;
}   

当我使用全局关键字时，我得到和错误:

    PHP Parse error:  syntax error, unexpected '=', expecting ',' or ';' in actions.class.php on line 41

当我使用$GLOBALS['gender_id2']时，值为null我需要设置一个分页器，因为我需要列出符合选择条件的所有行

在RcProfileTablePeer i have:

static public function getAllBySelection($gender2,$age1,$age2,$province_id)
{
    echo $gender2."  ".$age1."   ".$age2."   ".$province_id;
    $criteria = new Criteria();
    $criteria->add(RcProfileTablePeer::GENDER_ID,$gender2, Criteria::EQUAL); 
    $criteria->add(RcProfileTablePeer::AGE,$age1,Criteria::GREATER_EQUAL);
    $criteria->addAnd(RcProfileTablePeer::AGE,$age2,Criteria::LESS_EQUAL);
    if ($province_id <> 10)
        $criteria->addAnd(RcProfileTablePeer::PROVINCE_ID,$province_id, Criteria::EQUAL);
    return self::doSelect($criteria);
}

请帮忙，我不知道我还必须怎么做。谢谢你