title: How do I use Join in MySQLi php
body: <p>I have databases called Over_Pics (with a table called "Pic" with Columns ID, PicID) and Over_SeenPics (with a table called "Seen" with Columns Text, PicID)</p>
  
  <p>How do I correctly write the join function for this?</p>
  
  <pre><code>$r = mysqli_query($link, "SELECT Pic.PicID FROM Pic LEFT JOIN Seen ON Pic.PicID=Seen.PicID");
  </code></pre>
  
  <p>Also should the db name in mysqil_connect be left blank, since I need to access to dbs rather than 1?</p>