How to add Categories drop down menu

something like this (not tested):

<p> Select a category for your slider from the list 

<?php $categories= get_categories(); echo "<select name='amp_options[amp_cat]'>"; foreach ($categories as $cat) { $selected = ($cat->cat_name==$options['amp_cat']) ? 'selected="selected"' : ''; echo "<option value='$cat->cat_name' $selected>$cat->name</option>"; } echo "</select>";
?> 

</p>

Didn’t work. It listed most of the widgets from my home page, but not just the categories.

Anybody know how to do this?

https://codex.www.ads-software.com/Function_Reference/wp_dropdown_categories

I’ve already looked over that site, but as I don’t understand any coding, I have no clue what to do with the info on that page. I created a new page and added <?php wp_dropdown_categories( $args ); ?> to the HTML but nothing happened. Just a new blank page. I want to add the drop down to my header bar like I have done with Senior Reps and Photographer’s Corner (if you look at my blog @ https://www.jasonmportraits.com/Blog)

Try creating a custom menu: https://codex.www.ads-software.com/Appearance_Menus_SubPanel