Array for data from database

[m11oct]

I'm using this code to assign data from a db into a 2-D array:

$xal_rsult=mysql_query("SELECT * FROM `data`");
while ($row = mysql_fetch_assoc($xal_rsult)) {
  $user=$row['UserID'];
  foreach ($row as $key => $value) {
    $xal_db_data[$user][$key] = $value;
  }
}

Is there a quicker way to do this?

Would this work:

  $user=$row['UserID'];
  $xal_db_data[$user] = $row;

[m11oct]

UPDATE:
I've determined that this works:

$xal_rsult=mysql_query("SELECT * FROM `data`"); 
while ($row = mysql_fetch_assoc($xal_rsult)) { 
    $xal_db_data[$row['userid']] = $row;  

}

Does anyone have any suggestions on how to make this faster?
(There are about 2000 rows in the table each with 40 fields - the code seems to take about a second.)