get first cat php wp

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To get the first category in Wordpress using PHP, you can use the get_categories function, like this:

$categories = get_categories(array(
    'orderby' => 'name',
    'order'   => 'ASC',
    'number'  => 1
));

if($categories){
  $first_cat_id = $categories[0]->term_id;
  $first_cat_name = $categories[0]->name;
}

Explanation: 1. The get_categories function retrieves the list of categories from the database, and returns them as an array of objects. 2. The parameters passed to the function specify that the categories should be ordered by name in ascending order, and only the first category should be retrieved (number = 1). 3. The retrieved category information is then accessed using array notation to obtain the ID and name of the first category.