我正在创建一个插件，我需要在其中创建一个动态页面并为其分配一个模板。我使用以下代码创建了它：

function gallerypage() {    
    global $wpdb;
    $check_page = $wpdb->get_row( "SELECT * FROM wp_posts WHERE post_name = \'archive-gallery\'" );

    if ( ! $check_page ) {
        $page_time = the_time( \'Y-m-d g:i:s\' );
        $gallery_page = array(
            \'post_title\'    => \'Archive Gallery\',
            \'post_content\'  => \'This page is dedicated to the archive gallery. and it is used to show all the gallerys\',
            \'post_status\'   => \'publish\',
            \'post_type\'     => \'page\',
            \'post_author\'   => 1,
            \'post_slug\'     => \'archive-gallery\',
            \'post_date\'     => $page_time
        );

        //$wpdb->update($wpdb->prefix.\'pn_options\', array(\'option_value\'=>$post_id), array(\'id\'=>\'10\'));
        $p_ID = wp_insert_post( $gallery_page );
        update_post_meta( $p_ID, "_wp_page_template", "archivegallery.php" );
    }
} 
add_action( \'init\', \'gallerypage\' );