chickadee/logcheck.php

<?php

if ( __FILE__ == $_SERVER['SCRIPT_FILENAME'] ) {
  header("Location: /404.php");
  die();
}

session_start();

if ( isset( $_GET["logout"] ) ) {
  session_destroy();
  unset( $_SESSION );
}

if ( !isset($_SESSION["user"] ) ) {
  header("Location: /blog_log.php");
  die();
}