title: PHP - MD5, SHA, Hashing security
body: <p>I'm the developer of a new website built in PHP and I'm wondering what exactly is the best
  thing to use for hashing. I've looked at md5 and sha1 but is there anything more secure.<br>
  I'm sorry if this is a nooby question but I'm new to PHP Security and I'm trying to make my
  site as secure as possible. Also what is a salt?<br>
  Thanks,<br>
  Waseem</p>