title: Regex to match email (not strict)
body: <p>I would like to validate if an email address is entered by the user but I don't want to be too strict on it... So I came up with this....</p>
  
  <p>My current if statement with regex:</p>
  
  <pre><code>if (preg_match('^/.+?@.+?\..+$/', $_POST["email"]))
  </code></pre>
  
  <p>However, I would not work for an email address with multiple periods...</p>
  
  <p>For example:</p>
  
  <pre><code>testing@test.one.com
  </code></pre>
  
  <p>How can I allow multiple <code>.</code> or periods?</p>