Wordpress | Programmatically add posts

programmatically_added_posts.php

<?php
add_action( 'init', 'import_products', 20 );
function import_products() {
    $products = array(
        array( 'title' => 'AFDD060630B', 'description' => 'AFDD RCBO 10A 30mA 1P+N TYPE A', 'term' => 'Switch'),
        array( 'title' => 'AFDD061030B', 'description' => 'AFDD RCBO 12A 30mA 1P+N TYPE A', 'term' => 'Large Dial'),
        array( 'title' => 'AFDD061630B', 'description' => 'AFDD RCBO 16A 30mA 1P+N TYPE A', 'term' => 'Rotor')
    );
    $user = get_user_by('login', 'your-username');
    $user_id = $user->ID;
    foreach ( $products as $product ) :
        $post_title = $product['title'];
        $prod_description = $product['description'];
        $term_slug = $product['term'];
        $term_slug = sanitize_title( $term_slug ); // Converts the term lowercase and replaces spaces with hyphens
        $post_type = 'products';
        $args = array(
            'post_author' => $user_id,
            'post_type'    => $post_type,
            'post_title'   => $post_title,
            'post_status'  => 'publish',
            'meta_input' => array(
                'prod_label' => array( 'value' => 'description', 'label' => 'Description' ), // This is an ACF Select set to Both
                'prod_description' => $prod_description
            )
        );
        $taxonomy = 'groups'; // The taxonomy slug
        $term = get_term_by( 'slug', $term_slug, $taxonomy );
        $term_id = $term->term_id; // The ID of the taxonomy term
        if ( $post_object = get_page_by_title( $post_title, OBJECT, $post_type ) ) {
            $post_id = array( 'ID' => $post_object->ID );
            $update = array_merge( $post_id, $args );
            wp_set_object_terms( $post_object->ID, array( intval( $term_id ) ), $taxonomy, true );
            wp_update_post( $update );
        } else {
            $post_id = wp_insert_post( $args );
            wp_set_object_terms( $post_id, array( intval( $term_id ) ), $taxonomy, false );
        };
    endforeach;
};
?>