One of WordPress greatest feature since version 2.5 is shortcodes. All themes comes with a function.php file. You just have to put the shortcodes in your themes function.php and you can start using them.

Shortcodes are handy for features you want to use in your posts but not in all of them. Plug-ins usually are standard applied on all your posts. With shortcodes you get to be selective and it saves some typing.

I listed 7 plus shortcodes that comes in handy in your daily or not so daily posting routine. The last shortcode, StumbleUpon, is provided by me. A very simple shortcode that can be easily modified for use with other social media links.

Display Google Ad Sense anywhere in your posts

[php]
function showads() {
return ‘

‘;
}

add_shortcode(‘adsense’, ‘showads’);
[/php]

[php][adsense][/php]

Replace the Javascript with your own Google Ad Sense Javascript.

Source

Show Members Only Content

Visitors

[php]
add_shortcode( ‘visitor’, ‘visitor_check_shortcode’ );

function visitor_check_shortcode( $atts, $content = null ) {
if ( ( !is_user_logged_in() && !is_null( $content ) ) || is_feed() )
return $content;
return ”;
}
[/php]

[php]

[visitor]

Some content for the people just browsing your site.

[/visitor]

[/php]

Members

[php]

add_shortcode( ‘member’, ‘member_check_shortcode’ );

function member_check_shortcode( $atts, $content = null ) {
if ( is_user_logged_in() && !is_null( $content ) && !is_feed() )
return $content;
return ”;
}

[/php]

[php]

[member]

This is members-only content.

[/member]

[/php]

Source

Add private notes to your WordPress blog posts

[php]

add_shortcode( ‘note’, ‘sc_note’ );

function sc_note( $atts, $content = null ) {
if ( current_user_can( ‘publish_posts’ ) )
return ‘

‘;
return ”;
}

[/php]

[php]

[note]
This is a personal note that only admins can see!
[/note]

[/php]

Notes will be displayed in
[html]

[/html]

making it easier to style them in your stylesheet. Off course you can change the HTML in function sc_note to your own liking.

Source

Protect an email address from spam

*Not 100% foolproof

[php]

function munge_mail_shortcode( $atts , $content=null ) {

for ($i = 0; $i < strlen($content); $i++) $encodedmail .= "&#" . ord($content[$i]) . ';'; return '‘.$encodedmail.’‘;

}
add_shortcode(‘mailto’, ‘munge_mail_shortcode’);

[/php]

[php]

[mailto][email protected][/mailto]

[/php]

Mail is shown as email@email.com
in the source.

Source

Display a Flickr badge in your posts

*Requieres PHP5

[php]

function flickr_badge_shortcode($atts){

//Here’s our defaults
$query_atts = shortcode_atts(array(‘count’ => ‘6’, ‘display’ => ‘latest’, ‘source’ => ‘user’, ‘size’ => ‘t’, ‘user’ => ”, ‘layout’ => ‘x’, ‘tag’ => ”, ‘group’ => ”, ‘set’ => ”), $atts);

return sprintf(‘

‘, http_build_query($query_atts));
}

add_shortcode(‘flickrbadge’, ‘flickr_badge_shortcode’);

[/php]

[php]

[flickrbadge count=”4″ layout=”h” display=”latest” size=”t” source=”all_tag” tag=”fish”]

[/php]

Source

Display your own Flickrbadge

[php]

$flickr = ‘

‘;

return $flickr;
}

add_shortcode(‘latestflickr’, ‘flickr_badge_shortcode’);

[/php]

Change the parameters in the Javascript; count=6&display=latest&size=s&layout=h&source=user&user=xxxxxx or use the Flickr Badge generator and choose HTML badge.

[php]

[latestflickr]

[/php]

Dynamic permalinks

The advantage of using a ‘dynamic’ permalink is that you are not using a relative link to other page or posts. This way of you change the title of a post or page later on the links will still work as they are dependent on the id not on the slug.

[php]

function permalink_thingy($atts) {
extract(shortcode_atts(array(
‘id’ => 1,
‘text’ => “” // default value if none supplied
), $atts));

if ($text) {
$url = get_permalink($id);
return “$text“;
} else {
return get_permalink($id);
}
}
add_shortcode(‘permalink’, ‘permalink_thingy’);

[/php]

[php]

Using without providing text

[/php]

Source

Add Stumble or other social media buttons

[php]

function stumble_shortcode( $atts ) {

$stumble = ‘

‘;

return $stumble;
}

add_shortcode(‘stumble’, ‘stumble_shortcode’);

[/php]

[php]

[stumble]

[/php]

Using this shortcode example of StumbleUpon you can create your own buttons for different social media such as Reddit, Facebook, Delicious, etc.

This is very handy if you do not want to use a social media plugin that automatically adds buttons to all your posts. If you rather be selective with promoting your content using different social media per post then this shortcode is the solution.

When WordPress 2.5 was introduced in Spring 2008, one of the biggest innovations and additions was the WordPress Shortcode API. Shortcodes have become a regularly used feature by designers and can help to reduce the number of plugins used. In this post we look at some shortcodes you can implement and use to enhance your WordPress themes.

Getting Started With Shortcodes

A shortcode is a php function which you can add to the function.php of your theme. Via the trigger add_shortcode() you can define the name of your shortcode and how to call the function in the editor. Add this code immediately under the php function in your function.php.

1. Adding A Generic Link

The easiest use for shortcodes is probably to use a shortcode for content you publish regularly like a link to your subscription page.

Sample Code

[code]
function subscribe() {
return ‘Subscribe to Devlounge‘;
}
add_shortcode(‘sub’, ‘subscribe’);
[/code]

What we did in this example was to define the shortcode sub and link it to the function subscribe. Now if you use the shortcode [sub] in the text editor it will automatically replace it with the link Subscribe to Devlounge in the entry.

2. Adding Pullquotes To Your Theme

Pullquotes are a well known design element in print design but often forgotten online. Especially when posting long entries, choosing an ad rem quote can highly improve the readability and interest. The screenshot on the right is a perfect example of the visual effect pullquotes have.

It is very simple to add pullquotes to entry with a simple shortcode, similar to BBCode.

Sample Code

[code]
function pullquote( $atts, $content = null ) {
extract(shortcode_atts(array(
‘float’ => ‘$align’,
), $atts));
return ‘

‘ . $content . ‘

‘;
}
add_shortcode(‘pull’, ‘pullquote’)
[/code]

You can now use the shortcode [pull]your quote here[/pull] in the editor when writing entries.

Do not forget to style the new code in your theme’s CSS. In this example the shortcode [pull] returns <blockquote class="pullquote">.

Sample Code

[code]
blockquote.pullquote { width: 220px; padding: 5px 0; border: 0; font-size: 18px; line-height: 150%; }
[/code]

As you can see in this example, shortcodes can easily be used to use different styling in your entries without having to write HTML. This can be very handy for multi-authored blogs, not every author knows HTML, and makes shortcodes a genuine alternative for bbcode. It is very easy to provide a shortcode to use @font-face in your entries.

3. Adding A ‘Twit This’ Image/Link

Twitter is very practical to promote your entries and there are several methods to implement buttons or links to submit your entries. But sometimes you want an additional method to quickly add a button or submit link.
When entries start to become popular sometimes it can make sense to add a link at the top right or left of your entry, without having this submit link in every entry. This can easily be done with a shortcode and is also handy on multi-authored blogs and without the need to allow your authors the add code, scripts to their entries.

Sample code

[code]
function twitt() {
return ‘

‘;
}

add_shortcode(‘twitter’, ‘twitt’);
[/code]

You can now easily style the id="twitit" in your CSS, all the authors have to do to display the link is use the shortcode [twitter] in their entry.

If you want to add buttons to other social networks you can find the code needed for the submission process here.

4. Adding Previous Entries From The Same Category

Displaying related entries is a very popular on many blogs but some bloggers might prefer to show previous entries from the same category instead. This is very handy when you only have few categories and want to randomly display previous entries from that category.

Sample Code

[code]
function prev_related($atts, $content = null) {
extract(shortcode_atts(array(
“num” => ‘5’,
“cat” => ”
), $atts));
global $post;
$myposts = get_posts(‘numberposts=’.$num.’&order=DESC&orderby=random&category=’.$cat);
$retour=’

‘;
foreach($myposts as $post) :
setup_postdata($post);
$retour.=’
• ‘.the_title(“”,””,false).’

‘;
endforeach;
$retour.=’

‘;
return $retour;
}
add_shortcode(‘related’, ‘prev_related’);
[/code]

In this example the shortcode [related] will randomly display 5 entries from the same category.

5. Using Shortcodes To Hide Content From The Public

Shortcodes can also be used to hide content from non-logged in members. This can be very handy when you regularly publish paid content and still want to show a teaser to your entries. Additionally it can be smart to show only not-logged in users a certain text, fe. ‘This content is only visible to members, subscribe here to get access to all our awesome tips or log in here if you are already a member‘.

Creating The Shortcode For Guests

[code]
function guest_check_shortcode( $atts, $content = null ) {
if ( ( !is_user_logged_in() && !is_null( $content ) ) || is_feed() )
return $content;
return ”;
}

add_shortcode( ‘guest’, ‘guest_check_shortcode’ );
[/code]

Creating The Shortcode For Members

[code]

function member_check_shortcode( $atts, $content = null ) {
if ( is_user_logged_in() && !is_null( $content ) && !is_feed() )
return $content;
return ”;
}

add_shortcode( ‘member’, ‘member_check_shortcode’ );
[/code]

With both shortcode functions added to the functions.php it now is very easy to add the teaser line, with link to your subscription or login page, and the content for members only.

An Example Entry

[code]
A small teaser paragraph here.
[guest]This content is only visible to members, subscribe here to get access to all our awesome tips or log in here if you are already a member[/guest]
[member]Your awesome tip and member-only content comes here[/member]
Continue with your regular scheduled program.
[/code]

Sources

• WordPress Shortcode API documentation
• WPRecipes
• Justin Tadlock