WP Trik: Widget Display Post per Category

Copy paste kode berikut di functions.php
============================================

function wt_get_category_count($input = '') {
	global $wpdb;
	if($input == '')
	{
		$category = get_the_category();
		return $category[0]->category_count;
	}
	elseif(is_numeric($input))
	{
		$SQL = "SELECT $wpdb->term_taxonomy.count FROM $wpdb->terms, $wpdb->term_taxonomy WHERE $wpdb->terms.term_id=$wpdb->term_taxonomy.term_id AND $wpdb->term_taxonomy.term_id=$input";
		return $wpdb->get_var($SQL);
	}
	else
	{
		$SQL = "SELECT $wpdb->term_taxonomy.count FROM $wpdb->terms, $wpdb->term_taxonomy WHERE $wpdb->terms.term_id=$wpdb->term_taxonomy.term_id AND $wpdb->terms.slug='$input'";
		return $wpdb->get_var($SQL);
	}
}


Paste Kode Berikut di tempat yang mau dimunculkan:
===============================================


<?php echo wt_get_category_count(); ?>

Cara lainnya:
<?php echo wt_get_category_count(buku); ?> 	------------ buku adalah nama kategori
<?php echo wt_get_category_count(12); ?> =----------------= 15 ada no id kategori