Thanks but I know how to find an ID, what I am asking is:
If i give a tag to a post, how can I find this post id by querying its tag?
You can’t find one specific post but you can find all posts using a specific tag using WP_Query().
Ok how do I find the categories of this posts?
Basically I am using the plugin: http://wordpress.org/plugins/user-submitted-posts/
In the form you can insert a tag; this tag is attached to a post.
I am using the following and it works but if i duplicate the code below and I change the cat id in order to have all the tags within various categopries where the tags are used, it repeats the same tags for all categories.
<?php
$cat=5;
$yourcat = get_category($cat);
if ($yourcat) {
echo '<h3>' . $yourcat->name . '</h3>';
}
$args = array(
'categories'=> '5'
);
$tags = get_category_tags($args);
$content .= "<ul>";
foreach ($tags as $tag) {
$content .= "<li><a href=\"$tag->tag_link\">$tag->tag_name</a></li>";
}
$content .= "</ul>";
echo $content;
?>
Solution:
<ul>
<?php
query_posts('category_name=Ambiente');
if (have_posts()) : while (have_posts()) : the_post();
if( get_the_tag_list() ){
echo $posttags = get_the_tag_list('<li>','</li><li>','</li>');
}
endwhile; endif;
wp_reset_query();
?>
</ul>
