Open Terminal (ALT+F2).

gedit /etc/hosts

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Requirements

Here’s how the HTML file will look like:

form" action="http://yahoo.com/search" method="get">

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Steven Spielberg and Joseph Gordon-Levitt discuss about their new film LINCLON.

function getExtension($fileName){
   $i = strrpos($fileName, ".");
   if (!$i) {
      return "";
   }
   $length = strlen($str) - $i;
   $extens = substr($str, $i+1, $length);
   return $extens;
}

For example you need to get a extension of the file photo.jpg. To get the extension type this code in your PHP file.

<span style="color: #660000;"><?php</span> <span style="color: #660000;">echo</span> getExtension<span style="color: #660000;">(</span>'<b><span style="color: #e06666;">photo.jpg</span></b>'<span style="color: #660000;">);</span> <span style="color: #660000;">?></span>

The above code will print out "jpg".

1. The social stats – or Facebook Likes, Google +1s and Tweet counts – for your blog stories may be diluted as the URLs for the same story become different from different visitors.
2. You will have a similar problem if you are using an external commenting platform like Disqus or Facebook Comments.

To prevent this you need to add this code to your Template.
Go to Blogger -> Template -> EDIT HTML