Convert MongoDB cursor to PHP Array at a lower cost. Instead of using cursor.toArray() (at the time of the query ) which can be heavy, the function below allows you to convert MongoDB\Cursor directly into a PHP Array locally, improving the overall performance of the Iteration between PHP and MongoDB.

MongoDbCursorToPhpArrayAtALowerCost.php

 public function convertMongoDBCursorToArray($dbcursor) { 
        
        $counter=0; $x=0;  
        $finalarray = Array() ; $convertedarray=Array() ;
        
        foreach($dbcursor as $document) { $finalarray[$counter]=$document; $counter++;}       
        
        $finalarray=array_values($finalarray);       
        $thissize = count($finalarray);        
        $counter=0;  
        for($x=0;$x<$thissize;$x++) {            
            $fields = array_keys((array)$finalarray[$x]);            $values = array_values((array)$finalarray[$x]);            
            $fieldscount = count($fields);
            $fields = array_values($fields);
            for($y=0;$y<$fieldscount;$y++) {
                $fieldname = $fields[$y];                
                $value = $values[$y];               
                $convertedarray[$x][$fieldname] =$value;  } // y inner
        } // x outter 
        return $convertedarray;  }