PHP

get taxonomy term id from slug - WordPress

<?php 
    $term = get_term_by('slug', $slug, 'category'); 
    $name = $term->name; 
    $id = $term->term_id;
?>

wordpress get current taxonomy

$term = get_term_by( 'slug', get_query_var( 'term' ), get_query_var( 'taxonomy' ) );
echo $term->name; // will show the name
echo $term->slug; // will show the slug

How do I get current taxonomy "term id" on wordpress?

$obj = get_queried_object();
echo $obj->term_id;