Question

I have a native PHP function issue when I convert plain PHP code into CodeIgniter. Do have any idea or alternate solution about this?

Plain PHP code

$aColumns = array( 'id', 'name', 'first_name' );
$sTable = "ajax";
$sQuery = "SELECT SQL_CALC_FOUND_ROWS 
          ".str_replace(" , ", " ", implode(", ", $aColumns))."FROM   $sTable
$rResult = mysql_query( $sQuery );
while ( $aRow = mysql_fetch_assoc( $rResult ) )
{
  print_r($aRow);
}

Perfect Result Output

Array
(
    [id] => 1
    [name] => kane
    [first_name] => kane
)
Array
(
    [id] => 2
    [name] => kane
    [first_name] => kane
)
Array
(
    [id] => 3
    [name] => kane
    [first_name] => kane
)

Codeigniter CODE

$aColumns = array( 'id', 'name', 'first_name' );
$sTable = "ajax";
$sQuery = "SELECT SQL_CALC_FOUND_ROWS 
           ".str_replace(" , ", " ", implode(", ", $aColumns))."FROM   $sTable
$rResult = $this->db->query($sQuery);
while ( $aRow =  $rResult->row_array() )
{
      print_r($aRow);
}

Infinite Result Output

Array
    (
        [id] => 1
        [name] => kane
        [first_name] => kane
    )
Array
    (
        [id] => 1
        [name] => kane
        [first_name] => kane
    )

Answer 1

Thats because the use of $result->row_array() is wrong in what you’re trying to accomplish.

The correct way, to loop over the results and getting the result as an array is using the $result->result_array() method instead. Like so:

foreach( $rResult->result_array() as $aRow )
{
      print_r($aRow);
}

Take a look at the documentation for generating query results in CI.