Todas nuestras etiquetas en una lista desplegable

Si no tenemos un número excesivo de etiquetas y las quisiéramos desplegar en una lista, aquí tenemos el código para realizarlo.

Primero, iremos a functions.php o lo crearemos como simple archivo de texto y pegaremos en su interior el siguiente código:

<?php
function dropdown_tag_cloud( $args = '' ) {
$defaults = array(
'smallest' => 8, 'largest' => 22, 'unit' => 'pt', 'number' => 45,
'format' => 'flat', 'orderby' => 'name', 'order' => 'ASC',
'exclude' => '', 'include' => ''
);
$args = wp_parse_args( $args, $defaults );

$tags = get_tags( array_merge($args, array('orderby' => 'count', 'order' => 'DESC')) ); // Always query top tags

if ( empty($tags) )
return;

$return = dropdown_generate_tag_cloud( $tags, $args ); // Here's where those top tags get sorted according to $args
if ( is_wp_error( $return ) )
return false;
else
echo apply_filters( 'dropdown_tag_cloud', $return, $args );
}

function dropdown_generate_tag_cloud( $tags, $args = '' ) {
global $wp_rewrite;
$defaults = array(
'smallest' => 8, 'largest' => 22, 'unit' => 'pt', 'number' => 45,
'format' => 'flat', 'orderby' => 'name', 'order' => 'ASC'
);
$args = wp_parse_args( $args, $defaults );
extract($args);

if ( !$tags )
return;
$counts = $tag_links = array();
foreach ( (array) $tags as $tag ) {
$counts[$tag->name] = $tag->count;
$tag_links[$tag->name] = get_tag_link( $tag->term_id );
if ( is_wp_error( $tag_links[$tag->name] ) )
return $tag_links[$tag->name];
$tag_ids[$tag->name] = $tag->term_id;
}

$min_count = min($counts);
$spread = max($counts) - $min_count;
if ( $spread <= 0 )
$spread = 1;
$font_spread = $largest - $smallest;
if ( $font_spread <= 0 )
$font_spread = 1;
$font_step = $font_spread / $spread;

// SQL cannot save you; this is a second (potentially different) sort on a subset of data.
if ( 'name' == $orderby )
uksort($counts, 'strnatcasecmp');
else
asort($counts);

if ( 'DESC' == $order )
$counts = array_reverse( $counts, true );

$a = array();

$rel = ( is_object($wp_rewrite) && $wp_rewrite->using_permalinks() ) ? ' rel="tag"' : '';

foreach ( $counts as $tag => $count ) {
$tag_id = $tag_ids[$tag];
$tag_link = clean_url($tag_links[$tag]);
$tag = str_replace(' ', '&nbsp;', wp_specialchars( $tag ));
$a[] = "t<option value='$tag_link'>$tag ($count)</option>";
}

switch ( $format ) :
case 'array' :
$return =& $a;
break;
case 'list' :
$return = "<ul class='wp-tag-cloud'>nt<li>";
$return .= join("</li>nt<li>", $a);
$return .= "</li>n</ul>n";
break;
default :
$return = join("n", $a);
break;
endswitch;

return apply_filters( 'dropdown_generate_tag_cloud', $return, $tags, $args );
}
?>

Acto seguido, iremos al template en el que nos interese insertar la lista desplegable y, orientándonos entre el HTML, pegaremos el siguiente código:

<select name="tag-dropdown" onchange="document.location.href=this.options[this.selectedIndex].value;">
<option value="#">Tags</option>
<?php dropdown_tag_cloud('number=0&order=asc'); ?>
</select>

Nuestros tags seran ahora mostradis en un desplegable.

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