PowenKo > PHP > WordPress > List all posts under each categories

<?php
function get_cat_hierchy($parent,$args){
 
    $cats = get_categories($args);
    $ret = new stdClass;
 
    foreach($cats as $cat){
        if($cat->parent==$parent){
            $id = $cat->cat_ID;
 
            $ret->$id = $cat;
            $ret->$id->children = get_cat_hierchy($id,$args);
        }
    }
 
    return $ret;
}
$args = array(
        'type'                     => 'post',
        'child_of'                 => 0,
        'hide_empty'               => false,
        'hierarchical'             => true,
        'exclude'                  => '1'
    );
	
	$parent=0;
//	Display_cat_under_posts(0,$args);
//function Display_cat_under_posts($parent,$args){	
	$retarray=get_cat_hierchy($parent,$args);
	//echo ($retarray->name); 
	foreach($retarray as $airport) {
	   echo "<h1>".$airport->name."</h1><br>";
		foreach($airport->children as $airport2) 
		{
		 	echo "<h2>  <a href='?cat=".$airport2->term_id."'>".$airport2->name."</a></h2><br>";
			query_posts( 'cat='.$airport2->term_id );
			while ( have_posts() ) : the_post();
 ?>
				
                
                
				<li><a href='<?php the_permalink() ?>'
rel='bookmark' title='<?php the_title(); ?>'>
<?php the_title(); ?></a></li>
<?php
			
			endwhile;
			wp_reset_query();
			
		echo "<p>-------------------------------------------------------------------<p>";
		}
	}
//}
////////////////////



/*
stdClass Object (
 [3] => stdClass Object ( 
 	[term_id] => 3 
	[name] => IT 
	[slug] => it 
	[term_group] => 0 
	[term_taxonomy_id] => 3 
	[taxonomy] => category 
	[description] => [parent] => 0 [count] => 1 [cat_ID] => 3 
	[category_count] => 1 
	[category_description] => [cat_name] => IT [category_nicename] => it [category_parent] => 0 
	[children] => stdClass Object ( [4] => stdClass Object ( [term_id] => 4 [name] => android [slug] => android [term_group] => 0 [term_taxonomy_id] => 4 [taxonomy] => category [description] => [parent] => 3 [count] => 1 [cat_ID] => 4 [category_count] => 1 [category_description] => [cat_name] => android [category_nicename] => android [category_parent] => 3 [children] => stdClass Object ( ) ) [5] => stdClass Object ( [term_id] => 5 [name] => iOS [slug] => ios [term_group] => 0 [term_taxonomy_id] => 5 [taxonomy] => category [description] => [parent] => 3 [count] => 1 [cat_ID] => 5 [category_count] => 1 [category_description] => [cat_name] => iOS [category_nicename] => ios [category_parent] => 3 [children] => stdClass Object ( ) ) ) ) )
*/


echo "<p><p><p><p>";



?>





<div class='breadcrumb'>
<?php // if there is a parent, display the link
$parent_title = get_the_title($post->post_parent);
if ( $parent_title != the_title(' ', ' ', false) ) {
  echo '<a href=' . get_permalink($post->post_parent)
    . ' ' . 'title=' . $parent_title . '>' . $parent_title
    . '</a> » ';
} 
// then go on to the current page link
?>
<a href='<?php the_permalink() ?>'
rel='bookmark' title='<?php the_title(); ?>'>
<?php the_title(); ?></a>
</div>