I am updating post meta with this
update_post_meta( '3100', 'mymetakey', 'mymetavalue' );
How can I add this metakey and metavalue not only to post ID 3100, but several other IDs?
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Answer
You can define array
of post ids and then you can iterate loop of ids. Try the below code.
$postIds = array( 3100, 1234, 5678....); foreach ( $postIds as $key => $post_id ) { update_post_meta( $post_id, 'mymetakey', 'mymetavalue' ); }
Update as per OP comment.
$args = array( 'post_type' => 'product', 'posts_per_page' => -1, 'tax_query' => array( array( 'taxonomy' => 'product_cat', // custom taxonomy 'field' => 'slug', 'terms' => 'your-category-slug', // taxonomy term (category) ) ) ); $products = new WP_Query( $args ); if( $products->have_have() ){ while ( $products->have_have() ) { $products->the_post(); update_post_meta( get_the_ID(), 'mymetakey', 'mymetavalue' ); } wp_reset_postdata(); }