Description:
------------
The function FILTER_VALIDATE_URL is not validating the the Protocol of a URL.. Even if Its Compulsory to Pass Protocol to the function
example:
$url="fakeprotocol.fakedata.fakething.fakename.randomestring://www.google.com";
$r = filter_var($url, FILTER_VALIDATE_URL);
the Above code Always Return True.. But is Should Be FALSE. coz of it's wrong protocol part & IT'S NOT A Valid Url 


Test script:
---------------
<?php
$url="fake.fake.fake.fake.fake.proto://www.google.com";
$r = filter_var($url, FILTER_VALIDATE_URL);
if($r)
{
   echo "Valid Url";
}
else
{
  echo "Invalid url";
}
?>

Expected result:
----------------
if Protocol part of URL is in Invalid format It should not Return True..
coz url is Not Valid..
But the Above code is always Return "Valid url" as Output