title: php unwritable with 755 permisions
body: <p>I finished installed my joomla 3 en my server debian and this show in the php configurations php unwritable so I pressed the next button and after I went to my server so as root change the permission to my site to 755 but the message in the System information -> Directory permission show me unwritable again, like show below.</p>
  
  <pre><code>Directory    Status
  
  administrator/components    Unwritable
  administrator/language  Unwritable
  administrator/language/overrides    Unwritable
  administrator/language/en-GB    Unwritable
  administrator/manifests/files   Unwritable
  administrator/manifests/libraries   Unwritable
  administrator/manifests/packages    Unwritable
  administrator/modules   Unwritable
  administrator/templates Unwritable
  components  Unwritable
  images  Unwritable
  images/headers  Unwritable
  images/sampledata   Unwritable
  images/banners  Unwritable
  language    Unwritable
  language/overrides  Unwritable
  language/en-GB  Unwritable
  libraries   Unwritable
  media   Unwritable
  modules Unwritable
  plugins Unwritable
  plugins/authentication  Unwritable
  plugins/content Unwritable
  plugins/editors-xtd Unwritable
  plugins/system  Unwritable
  plugins/search  Unwritable
  plugins/quickicon   Unwritable
  plugins/captcha Unwritable
  plugins/finder  Unwritable
  plugins/extension   Unwritable
  plugins/user    Unwritable
  plugins/editors Unwritable
  plugins/twofactorauth   Unwritable
  templates   Unwritable
  configuration.php   Unwritable
  cache (Cache Directory) Unwritable
  administrator/cache (Cache Directory)   Unwritable
  /var/www/magoprat/logs (Log directory)  Unwritable
  /var/www/magoprat/tmp (Temp directory)  Unwritable
  </code></pre>
  
  <p>anyone know what happens? thanks in advance</p>