<?php
if(10 == 10):
echo ‘This is true, and will be shown.’;
endif;
if(10 == 15):
echo ‘This is false, and will not be shown.’;
endif;
?>
<?php
if(10 == 11):
echo ‘This is false, and will not be shown.’;
elseif(10 == 15):
echo ‘This is false, and will not be shown.’;
else:
echo ‘Since none of the above is true, this will be shown.’;
endif;
?>
<?php
if( is_home() ):
echo ‘User is on the homepage.’;
else:
echo ‘User is not on the homepage’;
endif;
?>
<?php
if( is_home() AND is_page( 5 ) ):
echo ‘User is on the homepage, and the home pages ID is 5′;
endif;
if( is_home() OR is_page( 5 )):
echo ‘User is on the homepage or the page where the ID is 5′;
endif;
?>
<?php if ( have_posts() ) : ?>
… posts …
<?php else : ?>
… search field …
<?php endif; ?>
if( is_admin() ):
# User is administator
endif;
if( is_home() AND is_page(’1′) ):
# The user is at the home page and the home page is a page with the ID 1
endif;
if( is_single() OR is_page() ):
# The user is reading a post or a page
endif;
if( !is_home() AND is_page() ):
# The user is on a page, but not the homepage
endif;
if ( is_user_logged_in() ):
echo ‘Welcome, registered user!’;
else:
echo ‘Welcome, visitor!’;
endif;
<?php if ( get_option(‘users_can_register’):
echo ‘Registrations are open.’;
else:
echo ‘Registrations are closed.’;
endif;
判别用户应用的电脑是pc或mac
if( stristr($_SERVER['HTTP_USER_AGENT'],”mac”) ):
echo ‘Hello, I’m a Mac.’;
else:
echo ‘And I’m a PC.’;
endif;
<?php
// function for inserting Google Analytics into the wp_head
add_action(‘wp_footer’, ‘ga’);
function ga() {
if ( !is_user_logged_in() ): // íf user is not logged in
?>
<script type=”text/javascript”>
var _gaq = _gaq || [];
_gaq.push(['_setAccount', 'UA-XXXXXXX-X']); // insert your Google Analytics id here
_gaq.push(['_trackPageview']);
_gaq.push(['_trackPageLoadTime']);
(function() {
var ga = document.createElement(‘script’); ga.type = ‘text/javascript’; ga.async = true;
ga.src = (‘https:’ == document.location.protocol ? ‘https://ssl’ : ‘http://www’) + ‘.google-analytics.com/ga.js’;
var s = document.getElementsByTagName(‘script’)[0]; s.parentNode.insertBefore(ga, s);
})();
</script>
<?php
endif;
}
?>
<?php if ( is_singular( ‘books’ ) ):
// This post is of the custom post type books.
endif; ?>
<?php
add_action(‘template_redirect’, ‘single_result’);
function single_result() {
if (is_search()) {
global $wp_query;
if ($wp_query->post_count == 1) {
wp_redirect( get_permalink( $wp_query->posts['0']->ID ) );
}
}
}
?>
<?php if( ($wp_query->current_post + 1) < ($wp_query->post_count) ): ?>
<p class=”separator”></p>
<?php endif; ?>
<?php
if( current_user_can(‘editor’) ):
// true if user is an editor
endif;
if( !current_user_can(‘administrator’) ):
// true if user is not admin
endif;
if( current_user_can(‘edit_posts’) ):
// true if user can edit posts
endif;
?>
<?php
add_filter( ‘wp_default_editor’, create_function(”, ‘return “tinymce”;’) );
add_action( ‘admin_head’, ‘disable_html_editor_wps’ );
function disable_html_editor_wps() {
global $current_user;
get_currentuserinfo();
if ($current_user->user_level != 10) {
echo ‘<style type=”text/css”>#editor-toolbar #edButtonHTML, #quicktags {display: none;}</style>’;
}
}
?>
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