count child from parent child php mysql 5 level deep

Question

Folks,
I am badly in need of counting every member on each level I have 5 level deep Commission model so I am able to count the first level but not able to count whole team a person have in his / her down line. I want to count how many members on each level like
on 1st level 2 members, second level 34 members, third level 7 members etc. I am sharing my sql table here

id fname rid cnt

1 NetCash 0 3

2 Mian Salman 1 5

3 Zeeshan Murtaza 1 2

4 Usman Liaqat 1 2

5 Javed Iqbal 2 1

6 Faysal Islam 2 0

7 Waqas Pervaiz 3 0

8 Bashir Ahmad 5 0

9 Mirza Amir 2 0

10 Tauqeer Saghir 2 4

11 Asif Butt 4 0

12 Abdul Qayum 10 0

13 jhangir abbas 10 1

14 Ansar Mahmood 13 0

15 M USMAN KAYANI 10 0

16 Jabir Hussain 2 0

17 Abdul Rehman 10 0

18 Adnan javed 3 1

19 muhammad irfan 18 0

20 khurram 4 0
I need to count the whole number of members for Parent id / rid = 1 on 1st level , 2nd level ... up to 5th level.
I am able to count on first level like
SELECT COUNT(*) AS counts FROM user_table WHERE rid = 2
if you need any clarification please comment i will explain.

Answer 1

除非我遗漏了什么，否则您只需使用GROUP BY

SELECT COUNT(id) AS counts, rid AS level FROM user_table WHERE rid<6 AND rid>0 GROUP BY rid