How to Create a Custom WordPress Taxonomy

gistfile1.php

<?php

function dwwp_register_taxonomy() {

	$singular = 'Location';
	$plural = 'Locations';
	$slug = str_replace( ' ', '_', strtolower( $singular ) );

	$labels = array(
		'name'                       => $plural,
        'singular_name'              => $singular,
        'search_items'               => 'Search ' . $plural,
        'popular_items'              => 'Popular ' . $plural,
        'all_items'                  => 'All ' . $plural,
        'parent_item'                => null,
        'parent_item_colon'          => null,
        'edit_item'                  => 'Edit ' . $singular,
        'update_item'                => 'Update ' . $singular,
        'add_new_item'               => 'Add New ' . $singular,
        'new_item_name'              => 'New ' . $singular . ' Name',
        'separate_items_with_commas' => 'Separate ' . $plural . ' with commas',
        'add_or_remove_items'        => 'Add or remove ' . $plural,
        'choose_from_most_used'      => 'Choose from the most used ' . $plural,
        'not_found'                  => 'No ' . $plural . ' found.',
        'menu_name'                  => $plural,
	);

	$args = array(
            'hierarchical'          => true,
            'labels'                => $labels,
            'show_ui'               => true,
            'show_admin_column'     => true,
            'update_count_callback' => '_update_post_term_count',
            'query_var'             => true,
            'rewrite'               => array( 'slug' => $$slug ),
        );

	register_taxonomy( $$slug, 'my_post_type', $args );
}

add_action( 'init', 'dwwp_register_taxonomy' );

Thanks for fixing stnc, hour later pop on head.

thanks guys,

thanks stnc for fixing

function dwwp_register_taxonomy() {
$singular = 'Location';
$plural = 'Locations';
$slug = str_replace( ' ', '_', strtolower( $singular ) );
$labels = array(
'name' => $plural,
'singular_name' => $singular,
'search_items' => 'Search ' . $plural,
'popular_items' => 'Popular ' . $plural,
'all_items' => 'All ' . $plural,
'parent_item' => null,
'parent_item_colon' => null,
'edit_item' => 'Edit ' . $singular,
'update_item' => 'Update ' . $singular,
'add_new_item' => 'Add New ' . $singular,
'new_item_name' => 'New ' . $singular . ' Name',
'separate_items_with_commas' => 'Separate ' . $plural . ' with commas',
'add_or_remove_items' => 'Add or remove ' . $plural,
'choose_from_most_used' => 'Choose from the most used ' . $plural,
'not_found' => 'No ' . $plural . ' found.',
'menu_name' => $plural
);
$args = array(
'hierarchical' => true,
'labels' => $labels,
'show_ui' => true,
'show_admin_column' => true,
'update_count_callback' => '_update_post_term_count',
'query_var' => true,
'rewrite' => array( 'slug' => $slug )
);
register_taxonomy( $slug, 'Ouveure', $args );
}
add_action( 'init', 'dwwp_register_taxonomy' );