PHP Check image size and show the error
<p>I was following this tutorial for uploading an image.I could n't figure out,how is this checking file file,if the file size exceed,it should an error.</p>

<p>Here is the link <a href="http://www.htmlgoodies.com/beyond/php/article.php/3877766/Web-Developer-How-To-Upload-Images-Using-PHP.htm" rel="nofollow">http://www.htmlgoodies.com/beyond/php/article.php/3877766/Web-Developer-How-To-Upload-Images-Using-PHP.htm</a></p>

<p>Can some one explain,how is this code checking the file size and validating it.</p>
