Additional post tags should be: `mysqli` `spl`, but I'm too new on CR.

I've made a SPL-based class named MySQLi_Recordset that wraps both MySQLi_STMT and MySQLi_Result objects and allows treating either as a 3-dimensional array.  It requires PHP5.3+.

The code is roughly 200 lines long, so instead of making a giant post, here's a pastebin link...  http://pastebin.com/LUe4j9DM

This class allows accessing result rows by array key (`echo $recorset[295]['title'];`) or by foreach loops (`foreach ($recordset as $rec) {echo $rec['title'];}`).  Objects are created by passing in an sql query statement.  For handling prepared statements, simply pass in additional arguments as the prepared binding parameters.  In those cases, there is a behind-the-scenes `bind_param` going on to generate the MySQLi_STMT object to be wrapped, but that part isn't included here.  So for the purposes of this post, pretend it's magic.

For example to automatically handle the query as a prepared statement:

    $recordset = new MySQLi_Recordset("SELECT * FROM tblComments WHERE(parentBlogID = ?)", 2);
    foreach ($recordset as $record)
        echo $record['commentText'] . '<br>';

Here's some speed tests using a localhost table with 6 columns.  This test was done with prepared statement results either wrapped in MySQLi_Recordset or not...

10000 Records With MySQLi_Recordset...
<ul>
<li><code>foreach($MySQLi_Recordset as $rec) {$x = $rec;}</code> ...<br>
0.10179591178894 ms</li>
<li><code>for ($i = 0, $count = count($MySQLi_Recordset); $i &lt; $count; $i++) {$x = $MySQLi_Recordset[$i];}</code> ...<br>
0.055855989456177 ms</li>
<li><code>for ($i = 0, $count = count($MySQLi_Recordset); $i &lt; $count; $i++) {$x = $MySQLi_Recordset-&gt;fetchRow($i);}</code> ...<br>
0.039575099945068 ms</li>
</ul>

10000 Records Without MySQLi_Recordset still using the "bind to array" technique and storing results...
<ul>
<li><code>for ($i=0, $count=$MySQLI_STMT-&gt;num_rows; $i &lt; $count; $i++)) {$MySQLI_STMT-&gt;fetch(); $x = $bind_row["commentID"];}</code> ...<br>
0.041354894638062 ms</li>
<li><code>while ($MySQLI_STMT-&gt;fetch()) {$x = $bind_row["commentID"];}</code> ...<br>
0.0087199211120605 ms</li>
</ul>

I'm pretty bummed about the slow foreach loop over my MySQLi_Recordset object, and by the fact that nothing can even compare to `while ($MySQLI_STMT->fetch()) {}`.  I'd like for this to work, especially since it allows exchanging this class out for regular 3-dimensional arrays of result dumps easily and avoiding duplication of binding code on every statement throughout an application.  Any suggestions or criticisms?