如何在codeigniter中使用array_count_values（）

Question

I need to get the count of each countries by the database.

Here my coding is

    $query = $this->db->query("SELECT country FROM list");
    echo"<pre>"; print_r($query->result()); 

The select query returns object as result and array_count_values need array in the parameter

So how can I use array_count_values to dynamically pass values in CodeIgniter.

Answer 1

Try this:

SELECT country, Count(*) FROM list GROUP BY country

Also you can find a full and detailed answer here

Answer 2

SELECT
    country,
    count(country) as `Total`
FROM list
GROUP BY country

Answer 3

you can following code

function fun_name() 
    {
        $this->db->where('id !=',0);// like this you can set conditions
        return $this->db->count_all_results('table_name');
    }

Answer 4

You can use num_row() function for this

  $this->db->select('country');
  $this->db->from('list');
  $query = $this->db->get();

  echo $query->num_rows(); // this will print the count of all countries
  echo"<pre>"; print_r($query->result()); // this can be used for fetching countries name(else)