Magento – Want to get meta_title ( Page Title in category )

Try this code:

 <?php
    $this->getLayout()->getBlock('head')->getTitle();
    $this->getLayout()->getBlock('head')->getDescription();

    ?>

I think, you have a typo here (if you have created page_title attribute) :

Replace <?php if ($category->getPageTitle()):?> WITH <?php if ($_category->getPageTitle()):?>

If you want to get meta_title (this is shown as Page Title in category edit page at admin)

then use :

<?php if ($_category->getMetaTitle()):?>
    <?php echo $_helper->categoryAttribute($_category, $_category->getMetaTitle(), 'meta_title') ?>
<?php else: ?>