我正在尝试在分类法中创建一个新类别。php调用\'USSERS\'. 我在网上跟踪了几个例子，直到这一部分。

function insert_term( $name,$tax,$parent=\'\' ,$slug=\'\') {
    $term_id = term_exists( $name, $tax);
    if ( !$term_id)
        $term_id = wp_insert_term( $name, $tax, array(\'parent\'=>$parent,\'slug\'=>$ludg) );
    return $term_id;
}

insert_term(\'USSERS\',\'category\');

完成上述代码后，我去查看wordpress仪表板，看看我是否确实创建了类别，但它没有显示出来。因此，现在我感到困惑和迷茫，因为我不知道如何继续上面的代码并将其显示在仪表板上。

FUNCTIONS.PHP

<?php
if ( function_exists(\'register_sidebar\') )
    register_sidebar();
add_filter( \'auto_update_plugin\', \'__return_false\' );
add_filter( \'auto_update_theme\', \'__return_false\' );
?>

function yourtheme_init() {
   insert_term(\'USSERS\',\'category\');
}
add_action(\'init\', \'yourtheme_init\');

function insert_term( $name,$tax,$parent=\'\' ,$slug=\'\') {
    $term_id = term_exists( $name, $tax);
    if ( !$term_id) {
        $term_id = wp_insert_term( $name, $tax, array(\'parent\'=>$parent,\'slug\'=>$slug) );
    }
    return $term_id;
}

echo \'<p>Debug: Loaded functions.php</p>\';

function yourtheme_init() {
   echo \'<p>Debug: called yourtheme_init</p>\';
   insert_term(\'USSERS\',\'category\');
}
add_action(\'init\', \'yourtheme_init\');

function insert_term($name,$tax,$parent=\'\', $slug=\'\') {
    echo \'<p>Debug: called insert_term</p>\';
    $term_id = term_exists($name, $tax);
    if (!$term_id) {
        echo \'<p>Debug: adding new term</p>\';
        $term_id = wp_insert_term( $name, $tax, array(\'parent\'=>$parent,\'slug\'=>$slug) );
        echo \'<p>Debug: new term added with ID \' . $term_id . \'</p>\';
    } else {
       echo \'<p>Debug: term already exists with ID \' . $term_id . \'</p>\';
    }

    die(\'<p>Debug: end</p>\');
    return $term_id;
}