Just use: $output = array_merge($array1, $array2);. That should solve it. Because you use string keys if one key occurs more than one time ... ... <看更多>
This video is going to show you how to convert an array to a string with a separator that you want. ⭐Learn more about YouTube VideoHow to ... ... <看更多>
To aggregate most rows. While querying all or most items, it is typically substantially faster to aggregate rows from the "many"-table first ... ... <看更多>