在WordPress中获取当前页面名称

Question

In a WordPress header.php file, is there a way to reduce this :

<?php if (is_page('about')): ?>
<script type="text/javascript">var page = "about";</script>
<?php endif ?>

<?php if (is_page('contact')): ?>
<script type="text/javascript">var page = "contact";</script>
<?php endif ?>

<?php if (is_page('gallery')): ?>
<script type="text/javascript">var page = "gallery";</script>
<?php endif ?>

to

<script type="text/javascript">
var page = "<?php echo get_current_page() ?>";
</script>

Answer 1

OK, the slight rub here is that the is_page() function will return TRUE if the contained string is the Post Title OR the Post Slug ( WordPress Codex ). So I will offer both solutions and you can pick which one works best for you.

<script type="text/javascript">
<?php $pageDetails = get_page(); ?>
var page_title = "<?php echo str_replace( '"' , '\"' , $pageDetails->post_title ); ?>";
var page_slug  = "<?php echo str_replace( '"' , '\"' , $pageDetails->post_name  ); ?>";
</script>

I included the str_replace() bit to ensure that any page names which include quotation marks will not break your Javascript.

And, adjusted as per comments by David M, using JSON to make things a little safer...

<script type="text/javascript">
<?php $pageDetails = get_page(); ?>
var page_title = <?php echo json_encode( $pageDetails->post_title ); ?>;
var page_slug  = <?php echo json_encode( $pageDetails->post_name  ); ?>;
</script>