here is my plugin activation code
$classified_category_name = 'classified';
$credit_table_name = 'credits';
$credit_table_version = 0.1;
register_activation_hook(__FILE__, 'LBH_Classifieds_Activate');
function LBH_Classifieds_Activate()
{
global $wpdb;
global $classified_category_name;
global $credit_table_name;
global $credit_table_version;
$table_name = $wpdb->prefix . $credit_table_name;
if($wpdb->get_var("SHOW TABLES LIKE '$table_name'") != $table_name) {
$sql = "CREATE TABLE " . $table_name . " (
time bigint(11) DEFAULT 0 NOT NULL,
amount tinyint(3) DEFAULT 0 NOT NULL,
username varchar(50) NOT NULL,
UNIQUE KEY username (username)
);";
require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
dbDelta($sql);
}
add_option('lbh_db_version', $credit_table_version);
}
but the global variables are empty.
Also, is there any way to print any information from within a plugin? I've tried returning a WP_Error, throwing a WP_Error, and all I can ever get is a big yellow box, mostly empty, with "Plugin could not be activated because it triggered a fatal error."