Category deep function - php

Question

How to get category deep with space padding on this function. At the moment i have select box with all categories have the same level.
<?php
add_action('add_meta_boxes', 'my_custom_metabox');
function my_custom_metabox() {
add_meta_box('custom-taxonomy-dropdown','Brands','taxonomy_dropdowns_box','post','side','high');
}
function taxonomy_dropdowns_box( $post ) {
global $brand_taxonomy, $taxonomy_name;
wp_nonce_field('custom-dropdown', 'dropdown-nonce');
$terms = get_terms( $brand_taxonomy, 'hide_empty=1&hierarchical=1;');
if ( is_a( $terms, 'WP_Error' ) ) {
$terms = array();
}
$object_terms = wp_get_object_terms( $post->ID, $brand_taxonomy, array('fields'=>'ids'));
if ( is_a( $object_terms, 'WP_Error' ) ) {
$object_terms = array();
}
// you can move the below java script to admin_head
?>
<?php
wp_dropdown_categories('show_option_none=Select category&show_count=1&hierarchical=1&taxonomy=ad_cat');
echo "Brand:";
echo "<select id='custombrandoptions' name='custombrands[]'>";
echo "<option value='0'>None</option>";
foreach ( $terms as $term ) {
if ( in_array($term->term_id, $object_terms) ) {
$parent_id = $term->term_id;
echo "<option value='{$term->term_id}' selected='selected'>{$term->name}</option>";
} else {
echo "<option value='{$term->term_id}'>{$term->name}</option>";
}
}
echo "</select><br />";
echo '<input type="text" value="'.$meta = get_post_meta($post->ID, 'cat_include', true).'" />';
}
source: http://paste.php.lv/dc485b1e6f37f09f916fccc6ae70ed2f?lang=php

Answer 1

I am not sure where your problem is located but maybe you are looking fpr str_repeat http://php.net/manual/en/function.str-repeat.php ..
so you might use these way:
echo '<option value="" ..>'.str_repeat(' ',$currentLevel+1).'</option>';
(I do not understand how you get the deep of level.. perhaps it is a good idea to iterate recusrivly through the hierarchy..)