kodları buldum belki işinize yarar
site.com/?rastgele ile çalışıyor
function yazi_yonlendir() {global $wpdb;$query = "SELECT ID FROM $wpdb->posts WHERE post_type = 'post' AND post_password = '' AND post_status = 'publish' ORDER BY RAND() LIMIT 1";if ( isset( $_GET['random_cat_id'] ) ) {$random_cat_id = (int) $_GET['random_cat_id'];$query = "SELECT DISTINCT ID FROM $wpdb->posts AS p INNER JOIN $wpdb->term_relationships AS tr ON (p.ID = tr.object_id AND tr.term_taxonomy_id = $random_cat_id) INNER JOIN $wpdb->term_taxonomy AS tt ON(tr.term_taxonomy_id = tt.term_taxonomy_id AND taxonomy = 'category') WHERE post_type = 'post' AND post_password = '' AND post_status = 'publish' ORDER BY RAND() LIMIT 1";}if ( isset( $_GET['random_post_type'] ) ) {$post_type = preg_replace( '|[^a-z]|i', '', $_GET['random_post_type'] );$query = "SELECT ID FROM $wpdb->posts WHERE post_type = '$post_type' AND post_password = '' AND post_status = 'publish' ORDER BY RAND() LIMIT 1";}$random_id = $wpdb->get_var( $query );wp_redirect( get_permalink( $random_id ) );exit;}if ( isset( $_GET['rastgele'] ) ) {add_action( 'template_redirect', 'yazi_yonlendir' );} 