Convert Datatables array value from Integer to String - php

Question

My database has a column called status which store only integer 0,1,2... Currently im listing all my database data to a datatable but how can i display my status column as string instead of the integer 0,1,2 ? I'm displaying the int value straight from database to table (which are 0,1,2), but i want to process the (0,1,2) and display (0 =Pending, 1 = Running , 2 = Completed.)
My database column :
Column Status
Image: Datatable
Expected result : Expected
PHP:
// DB table to use
$table = 'projects';
// Table's primary key
$primaryKey = 'projectID';
// Array of database columns which should be read and sent back to DataTables.
// The `db` parameter represents the column name in the database.
// The `dt` parameter represents the DataTables column identifier.
$columns = array(
array('db' => 'projectName', 'dt' => 0),
array('db' => 'projectDescription', 'dt' => 1),
array('db' => 'destinationName', 'dt' => 2),
array('db' => 'projectStatus', 'dt' => 3), //Here is the status column
array('db' => 'startDate', 'dt' => 4),
array('db' => 'endDate', 'dt' => 5)
);
// Include SQL query processing class
require 'ssp.class.php';
// Output data as json format
echo json_encode(
SSP::simple($_GET, $dbDetails, $table, $primaryKey, $columns)
);
My logic:
If (data) of projectStatus == 0 then display "Pending";
If (data) of projectStatus == 1 then display "Running";
If (data) of projectStatus == 2 then display "Completed";