$_GET / $_REQUEST different to string?
<p>I'm trying to use this library <a href="http://code.google.com/p/php-tail/" rel="nofollow">http://code.google.com/p/php-tail/</a></p>

<p>It's a great tool when it works but I'm stuck with some configuration.</p>

<p>Currently the file I'm tailing is set when constructing the class:</p>

<pre><code>$tail = new PHPTail("example.log");
</code></pre>

<p>this works fine, so does</p>

<pre><code>$log_file = "example.log";
$tail = new PHPTail($log_file);
</code></pre>

<p>What doesn't work (using URL localhost/tail.php?file=example</p>

<pre><code>$log_file = $_GET['file'].".log";
$tail = new PHPTail($log_file);
</code></pre>

<p>Nor does </p>

<pre><code>$log_file = $_REQUEST['file'].".log";
$tail = new PHPTail($log_file);
</code></pre>

<p>Even though the header of the page is set with the right log path, but the script doens't run.  I'm not seeing any PHP, JS or AJAX errors. </p>
