For your functions.php file or a functionality plugin:
function cc_mime_types( $mimes ){
$mimes['svg'] = 'image/svg+xml';
return $mimes;
}
add_filter( 'upload_mimes', 'cc_mime_types' );Without this, SVG files will be rejected when attempting to upload them through the media uploader.
<?php if (current_user_can("manage_options")) : ?>
<a href="<?php echo bloginfo("siteurl") ?>/wp-admin/">Admin</a>
<?php endif; ?>If a user is logged in and they are an Admin of the site (not just an subscriber or author), then display a link to get them to the WordPress Admin area. Otherwise, display nothing.
More specific than the regular log in / log out function, which will show for everyone:
<?php wp_loginout(); ?>
User profiles in WordPress by default have these fields for Contact Info by default: E-mail, Website, AIM, Yahoo IM, Jabber / Google Talk. You can remove those and add new ones as you wish, like in this example code for your functions.php file in your theme:
function new_contactmethods( $contactmethods ) {
$contactmethods['twitter'] = 'Twitter'; // Add Twitter
$contactmethods['facebook'] = 'Facebook'; // Add Facebook
unset($contactmethods['yim']); // Remove YIM
unset($contactmethods['aim']); // Remove AIM
unset($contactmethods['jabber']); // Remove Jabber
return $contactmethods;
}To display that publicly, you could:
$user_id = 1;
$key = 'twitter';
$single = true;
$user_twitter = get_user_meta( $user_id, $key, $single);
echo $user_twitter;
These two functions create anchor links, and you can customize a lot of it, but it's impossible to add a class through just using their parameters alone. Gotta add a function to functions.php:
add_filter('next_posts_link_attributes', 'posts_link_attributes');
add_filter('previous_posts_link_attributes', 'posts_link_attributes');
function posts_link_attributes() {
return 'class="styled-button"';
}
The body_class function is nice for adding a bunch of classes to the body tag that have information about what kind of page is currently being displayed. Probably for styling purposes. But for whatever reason, it doesn't include a class for the current category (or categories) for a single post.
This adds that category "nice" name:
add_filter('body_class','add_category_to_single');
function add_category_to_single($classes, $class) {
if (is_single() ) {
global $post;
foreach((get_the_category($post->ID)) as $category) {
// add category slug to the $classes array
$classes[] = $category->category_nicename;
}
}
// return the $classes array
return $classes;
}
<?php edit_post_link(__('Edit This')); ?>Put this in the theme file somewhere near where you output the_content() (likely in the single.php or page.php file) to make a link you can click that takes you into the admin to edit it. This link will only be visible when the viewer is logged in and has appropriate permissions to edit that page (administrator or author).
When you upload an image through the WordPress media uploader and then insert it into the editor, it comes with width and height attributes. These are normally desirable, as it assists the browser in making the appropriate room for the image during layout. But if you want to remove the insert action from adding these attributes, you can add this code to you functions.php file or a functionality plugin of your own making:
add_filter( 'post_thumbnail_html', 'remove_width_attribute', 10 );
add_filter( 'image_send_to_editor', 'remove_width_attribute', 10 );
function remove_width_attribute( $html ) {
$html = preg_replace( '/(width|height)="\d*"\s/', "", $html );
return $html;
}