WP Trik: Code Display WP Category

Sumber: https://dbarnwal.wordpress.com/2014/07/23/display-category-name-in-post-page/

Many times we need to display category name in post page . I have mentioned little code to display category name in post page, blog page.
Display the first category name only:

<?php
$category = get_the_category();
echo $category[0]->cat_name;
?>

For more then one category name:

<?php
foreach((get_the_category()) as $category) {
    echo $category->cat_name . ' ';
}
?>
Make the first category link to the category page
<?php
$category = get_the_category();
if($category[0]){
echo '<a href="'.get_category_link($category[0]->term_id ).'">'.$category[0]->cat_name.'</a>';
}
?>
get the post categories from outside the loop:

<?php
global $post;
$categories = get_the_category($post->ID);
var_dump($categories);
?>

Display all categories as Links:

<?php
$categories = get_the_category();
$separator = ' ';
$output = '';
if($categories){
	foreach($categories as $category) {
		$output .= '<a href="'.get_category_link( $category->term_id ).'" title="' . esc_attr( sprintf( __( "View all posts in %s" ), $category->name ) ) . '">'.$category->cat_name.'</a>'.$separator;
	}
echo trim($output, $separator);
}
?>

Display category images:

<?php
foreach((get_the_category()) as $category) {
    echo '<img src="http://example.com/images/' . $category->cat_ID . '.jpg" alt="' . $category->cat_name . '" />';
}
?>