« Judy Judy::__construct » PHP Manual Judy Locate the Nth index present in the Judy array Judy::byCount (PECL judy >= 0.1.1) Judy::byCount — Locate the Nth index present in the Judy array 说明 public Judy::byCount ( int $nth_index ) : int Locate the Nth index present in the Judy array. 参数 nth_index Nth index to return. If nth_index equal 1, then it will return the first index in the array. 返回值 Return the index at the given Nth position.