使用php mysql计算并显示列中的每个重复值

Question

我想使用php mysql

计算并显示下表中列中的每个重复值

name  
AAA
BBB
BBB
BBB
AAA
CCC

结果应该如下

AAA-2
BBB-3
CCC-1

Answer 1

你需要：

select name,count(1) from yourtable group by name

如果您需要带连字符（ - ）

的输出

select concat(name,'-',count(1)) from yourtable group by name

Answer 2

select name, count(name) as count from table_name group by name

Answer 3

试试这个，

Thread

Answer 4

SELECT name, COUNT(name) c_name FROM tablename GROUP BY name HAVING c_name>1 

Answer 5

<?php require_once('connection.php'); $result=mysqli_query($conn, "SELECT colum_name, concat(count(1),'-',colum_name) as colum_name FROM table_name group by colum_name order by colum_name desc"); while ( $data=mysqli_fetch_assoc($result)) { echo $data['colum_name']."<br>"; }