Warning: Missing argument 2 for wpdb::prepare()

找到問題頁面有包含
$wpdb->prepare
然後可能原本是這樣
return $wpdb->get_var($wpdb->prepare("SELECT COUNT(option_name) FROM $wpdb->options WHERE option_name = '$option';"));
只有一個參數

改成
$CC='$option';
return $wpdb->get_var($wpdb->prepare("SELECT COUNT(option_name) FROM $wpdb->options WHERE option_name = %d;",$CC));