函数的作用是：对数组按照键名逆向排序，元素的键名保持不变。

The krsort() function sorts an array by the keys in reverse order. The values keep their original keys.

youdao

函数的作用是：对数组按照键名逆向排序，元素的键名保持不变。

The krsort() function sorts an array by the keys in reverse order. The values keep their original keys.

youdao