title: trim url(query string)
body: <p>I have a query string like the one given below: </p>
  
  <p><a href="http://localhost/project/viewMember.php?sort=Y2xhc3M=&amp;class=Mw==&amp;page=9" rel="nofollow noreferrer">http://localhost/project/viewMember.php?sort=Y2xhc3M=&amp;class=Mw==&amp;page=9</a></p>
  
  <p>Now variable: page in query string can be anywhere within the query string either in beginning or middle or at end (like ?page=9 or &amp;page=9&amp; or &amp;page=9).</p>
  
  <p>Now, I need to remove page=9 from my query string and get a valid query string.</p>