title: PHP turn comma into a <br />
body: <p>I do know that php can turn a newline into a <code>&lt;br /&gt;</code> using <a href="http://php.net/manual/en/function.nl2br.php" rel="noreferrer"><code>nl2br()</code></a>, but is there a way that it can turn a comma (<code>,</code>) into a <code>&lt;br /&gt;</code>?</p>
  
  <p>For instance on an HTML page a user enters a bunch of words that are separated by a comma. He then submits it, it gets sent to a PHP file like normal and instead of the data getting sent right into the database, it goes through some kind of function to replace the commas with <code>&lt;br /&gt;</code>.</p>
  
  <p>So if I were to show the data on an HTML page, each thing they entered in that was separated by a comma is now separated by a newline/line break?</p>