https://www.webmaster-forums.net/crss/node/1035423 en https://www.webmaster-forums.net/serverside-scripting/does-php-script-look-ok#comment-1204896 <p>The problem is most likely that you are never initializing the session with the <strong>sesion_start()</strong> function. (see <a href="http://us3.php.net/manual/en/function.session-start.php" class="bb-url">http://us3.php.net/manual/en/function.session-start.php</a>) You need to do this on any page using the sessions, and it must be called BEFORE anything is sent ot the browser (ie. through echo, print, or before any &lt;? ?&gt; tags).</p> <p>Just a few notes on your code as changes I would recommend:</p> <p>Instead of <strong>&lt;?PHP print $msg; ?&gt;</strong>, you can simply do <strong>&lt;?= $msg ?&gt;</strong> or <strong><div class="codeblock"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br /></span><span style="color: #007700">= </span><span style="color: #0000BB">$msg <br />?&gt;</span></span></code></div></strong></p> <p>It is best not to store the plain password in the database, you should save a hashed version (ie, use md5() function) and check that. </p> <p>-Greg</p> Fri, 28 Jul 2006 19:02:31 +0000 Greg K comment 1204896 at https://www.webmaster-forums.net