在进行wordpress插件开发时，我正在创建一个带有以下字符串的表（安装插件时）：

$sql = "CREATE TABLE (query skipped)..."; /*someting*/

register_activation_hook( __FILE__, \'my_plugin_install\' );
function my_plugin_install(){

$sql = "CREATE TABLE (query skipped)..."; /*someting*/
echo $sql;
}

但当安装插件时，上面的代码不会响应任何内容。有办法看到输出吗？

Details: 
function my_plugin_install(){

   global $wpdb, $current_user;;

   //getting the musician/user rating keys
    global $k11, $k12, $k13, $k14, $k21, $k22, $k23, $k24;

   $fabprofile_table_name=$wpdb->prefix."fabulous_profile";

   $fabulous_profile_version = "2.0";

   //mid= music user id
   //uid = general user id
   //creating the ratings table
   $sql = "CREATE TABLE $fabprofile_table_name (

  mid tinyint(9) NOT NULL,

  uid tinyint(9) NOT NULL,

  $k11 tinyint(1) NOT NULL, $k12 tinyint(1) NOT NULL,$k13 tinyint(1) NOT NULL, $k14 tinyint(1) NOT NULL,

  $k21 tinyint(1) NOT NULL, $k22 tinyint(1) NOT NULL, $k23 tinyint(1) NOT NULL, $k24 tinyint(1) NOT NULL

);";



   require_once( ABSPATH . \'wp-admin/includes/upgrade.php\' );

   dbDelta( $sql );
   $wpdb->show_errors(); 
    echo $sql;
    }