PHP SQL查找前5个最重复的值

Question

I have a database that I am accessing through PHP and mysqli. I need to get the top 5 most repeated values.

For example, the database would have in it 1, 1, 2, 2, 2, 4, 6, 5, 5, 5, 5,

The database should print out in a row

: 5, 2, 1, 4, 6

Answer 1

Are you asking what the SQL query would be to get most occurances to least?

this here will group by the number and then order it from most occurances to the least

SELECT number , count(number) as 'occurrences' 
FROM my_table 
GROUP BY number 
ORDER BY count(number) DESC

Answer 2

Try this code snippet here

<?php
ini_set('display_errors', 1);
$array=array(1, 1, 2, 2, 2, 4, 6, 5, 5, 5, 5);
$data=array_count_values($array);//counting the no. of values in an array
arsort($data);//sorting array in descending order
print_r(array_keys($data));//getting the key of array which is the desired output

Answer 3

If you need the result as a string (in a row):

SELECT STUFF((SELECT ',' + convert(varchar,my_number) FROM my_table group by 
my_number ORDER BY count(my_number) desc for XML PATH('')), 1, 1, '')