OSdata.com

example source code
logout.php

Building a game — open source code This is the actual source code from a new web game. See the game at thissideofsanity.com and read how this was built starting at example code.

This is example code from the SlamZee project and This Side of Sanity, released under Apache License 2.0.

Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

This narrative uses anchor links so that you can follow the building of this software in chronological order. Go to software explanation to start reading. Go to thissideofsanity.com to see the working software.

example source code
logout.php

This is example code from the SlamZee project and This Side of Sanity, released under Apache License 2.0.

first pass

The logout facility will temporarily go to the index page. Later we will convert it to AJAX. The is done as a two step process to keep the work more simple and cut down on the possible causes of failures in new code.

<?php

/* FILE NAME /logout.php */

/******************************/
/* ProcessLogOut                                         */
/* log out from service                                 */
/* called from index.php                               */
/******************************/
function ProcessLogOut()
{

$old_user = $_SESSION['valid_user'];  
// store  to test if they *were* logged in
unset($_SESSION);
$result_dest = session_destroy();

if (!empty($old_user))
{
  if ($result_dest)
  {
    // if they were logged in and are now logged out
?>
<div><h3 align="center">Logged out</h3></div>

<?php 
  }
  else
  {
   // they were logged in and could not be logged out
    echo 'Could not log you out.<br />';
  }
}
else
{
  // if they weren't logged in but came to this page somehow
  echo 'You were not logged in, and so have not been logged out.<br />';
}

return '';

} /* ProcessLogOut */

?>

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