title: mysqli_query doesn't give results for email query
body: <p>I have a database in phpmyadmin and im trying to query the email fields from it, and it doesn't seem to work. The email field type is varchar and they contain the <code>@</code> special character: <code>example@domain.com</code> I tried querying from the phpmyadmin console too but with no success.</p>
  
  <p>Im using the following mysqli_query to get the specific fields:</p>
  
  <p>ex: <code>$email="example@domain.com"</code></p>
  
  <pre><code>$qres = mysqli_query($conn, "SELECT * FROM users WHERE email='".$email."'")
  or die("Query error!");
  $match = mysqli_num_rows($qres);
  echo $match;
  </code></pre>
  
  <p>The $match variable returns 0 which means the query works but doesn't return any result, but my database contains multiple entries with the specific email. Im guessing that is something to do with the @ special character, but not really sure.</p>