Fatal error: Call to undefined function mcrypt_get_block_size()
<p>I am uploading my website on to a server, and it uploaded successfully. After that, when I run, it gives me this error:</p>

<blockquote>
  <p>Fatal error: Call to undefined function mcrypt_get_block_size().</p>
</blockquote>

<p>I also check my <a href="http://en.wikipedia.org/wiki/PHP" rel="nofollow">PHP</a> version on my server is 5.3.14. I couldn't figure out how I can deal with this. I used this function for query string encryption. I searched about this on Google and some people say you have to ask your host to install it. Is there another way to install this or alternate function that work just like this mcrypt_get_block_size()?</p>
