title: simple authorisation / login capability in php
body: <p>I'm looking to implement user login onto my site for the first time.  I'm happy to either build my own solution, or implement something open source, however no package has been an obvious choice in my search so far.  Equally, I'm fully aware that as an intermediate php programmer at best, I am highly likely to miss something obvious if I roll my own solution, and leave the doors well and truly open.</p>
  
  <p>Any suggestions?  We're not talking super sensitive or payment data here, but equally, I'm keen not to have people mess up my site!</p>
  
  <p>requirements are
  - php based
  - simple as possible, not need for fancy bells and whistles
  - not Zend framework, since i've now rolled my own very basic frameworkthanks to <a href="https://stackoverflow.com/questions/422250/php-framework-or-template-engine-or-something-else">this post</a> </p>
  
  <p>Thanks for your input.</p>