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    <p>By default, PHP uses the <code>files</code> <a href="http://www.php.net/manual/en/session.configuration.php#ini.session.save-handler" rel="nofollow">session handler</a>. These files are stored based on the <code>session.save_path</code> setting, but defaults to the system's temp directory (a highly insecure location, consider changing it)</p> <p>This session handler stores each session as a serialized PHP array in a file named with the session ID.</p> <p>If you can find out a session ID prior to it being cleaned up by the session garbage collection routine, it can be hijacked, as PHP does not internally do any sanity checks. You may wish to do your own by storing the user's IP address in the session and comparing it to their current IP, clearing the session if they don't match.</p> <p><code>session.gc_maxlifetime</code> controls how many seconds a session will be considered valid. After this point, the session has a small chance of being deleted every time a request occurs. Default is 1440 seconds (or 24 minutes).</p> <p>By default, this chance is 1%, but can be altered by adjusting the <code>session.gc_probability</code> and <code>session.gc_divisor</code> values (they default to 1 and 100 respectively).</p> <p>There are other session handlers as well, such as the ones included with the <a href="http://www.php.net/manual/en/book.memcache.php" rel="nofollow">memcache</a> or <a href="http://www.php.net/manual/en/book.memcached.php" rel="nofollow">memcached</a> extensions. There was once one based on the <code>libmm</code> shared memory library, but I believe that has been discontinued.</p>
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    1. COOn the subject of session sanity checks, I spoke too soon. PHP has one session sanity check it can do, but it's based on the HTTP_REFERER value, which is controlled by the user and easily spoofable.
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

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