php speed testing of conditionals
<p>Assume there is already an if statement on the page.  </p>

<p>Now, out of:</p>

<pre><code>a second if statement
else
else if
</code></pre>

<p>Which is fastest and which is slowest to run? </p>

<p>Does it matter if $a only takes 2 possible values?</p>

<p><em>edit: Sample code:</em></p>

<pre><code>$a=2;
if ($a==1){
...
}
</code></pre>

<p>THEN</p>

<pre><code>if ($a==2){
...
}
</code></pre>

<p>OR</p>

<pre><code>else {
...
}
</code></pre>

<p>OR</p>

<pre><code>else if ($a==2){
...
}
</code></pre>
