gistfile1.php

<?php

  public function listingResultFixedPostions(&$aResult) {
    $fixedPositionsBuckets = array();
    $count = count($aResult);
    
    foreach($aResult as $key => &$row) {
      if(isset($row['news_date_order_fixedposition'])) {
        $pos = $row['news_date_order_fixedposition'];
        
        if($pos >= 1 && $pos <= $count) // check if requested position os out the bound
        {
          if(!is_array($fixedPositionsBuckets[$pos]))
            $fixedPositionsBuckets[$pos] = array();
          
          $fixedPositionsBuckets[$pos][] = $row;
          unset($aResult[$key]);
        }
      }
    }
    unset($row); // loose reference from last item of foreach
    
    $aResultStack = array();
    $pos = 0;
    foreach($aResult as &$row) {
      ++$pos;
      
      if($fixedPositionsBuckets[$pos]) {
        foreach($fixedPositionsBuckets[$pos] as &$rowPos)
          $aResultStack[] = $rowPos;
        
        unset($rowPos);
      }
      
      $aResultStack[] = $row;
    }
    unset($row); // loose reference from last item of foreach
    
    $aResult = $aResultStack;
    return;
  }