I modify the snippet from your attached tutorials into something like this:
function dropdown_tag_cloud( $args = '' ) {//supported: 'all', 'airport', 'state'
$defaults = array(
'smallest' => 8, 'largest' => 22, 'unit' => 'pt', 'number' => 45,
'format' => 'flat', 'orderby' => 'name', 'order' => 'ASC',
'exclude' => '', 'include' => '', 'tags_mode' => 'all'
);
$args = wp_parse_args( $args, $defaults );
print_r($args);
$tags = get_tags( array_merge($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 ) ){
echo "wp error...";
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 $tag ) {
if($tags_mode == 'airport'){
//if uppercased tag is equal to the tag
//which means current tag already uppercased.
if(!(strtoupper($tag->name) == $tag->name))
continue;//skip current tag
} else if($tags_mode == 'state'){
//if uppercased tag is equal to the tag
//which means current tag already uppercased.
if((strtoupper($tag->name) == $tag->name))
continue;//skip current 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(' ', ' ', 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'>
\t<li>";
$return .= join("</li>
\t<li>", $a);
$return .= "</li>
</ul>
";
break;
default :
$return = join("
", $a);
break;
endswitch;
return apply_filters( 'dropdown_generate_tag_cloud', $return, $tags, $args );
}
Basically, I was just adding new parameter called tags_mode
with the following parameter supported:
all
airport
state
And then, in dropdown_generate_tag_cloud()
, I add this code:
if($tags_mode == 'airport'){
if(!(strtoupper($tag->name) == $tag->name))
continue;//skip current tag
} else if($tags_mode == 'state'){
if((strtoupper($tag->name) == $tag->name))
continue;//skip current tag
}
The main idea in this added snippet is this:
strtoupper($tag->name) == $tag->name
It work like this: if the uppercased tag name is equal to the original tag name. That means, current tag is already uppercased (or, equal to airport code).
To implement it, just do as the tutorial says. Only, you need to add new parameter:
<?php dropdown_tag_cloud('number=0&order=asc&tags_mode=state'); ?>
Notice the &tags_mode=state
Just try it out and tell me if this is what you want.