how to get value from array columns data on Datatable to variable on php

how get value data to variabel test in php?

{
            'data': 'KPNO_TRANSAKSI',
            'className': "center",
            'render': function (data){
              '<?php $test ?>' = data; // i want get value data to variabel test
              return '<?php echo $test ?>';
            }
          }                 
      ]
    });