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    <p>Your form <code>onsubmit</code> seems to be wrong. <code>onsubmit</code> should be a <code>javascript function</code> not a <code>php file</code>. if you need to submit to php file you should use <code>action</code> attribute of <code>form</code>. currently you have given it as <code>report.php</code>. you may need to change it to <code>yearpdf.php</code> or redirect in the <code>report.php</code></p> <p>EDIT 1:</p> <p>the problem is you are calling the <code>window.open</code> which opens an url but doesn't submit your input value. so first time nothing will happen. but however on the next <code>window.open</code> or on the next refresh, there is the session variable from report.php and thus retrieves the data. you can follow some options</p> <ol> <li>put the code of report.php that to process the submit in yearpdf.php and change the form "action" to the yearpdf.php. and remove onclick function</li> <li>OR Redirect from report.php to yearpdf.php in the end of report.php. For redirect you can use <code>header('Location: <a href="http://www.yoursite.com/yearpdf.php" rel="nofollow">http://www.yoursite.com/yearpdf.php</a>');</code>. and remove onclick function</li> <li>OR modfiy your JavaScript code to send something like this <code>window.open("yearpdf.php" + "?course_year=" + document.getElementsByName("course_year")[0].value));</code> and change your <code>$r1=$_SESSION['year1'];</code> to <code>$r1=$_GET['course_year'];</code> in yearpdf.php</li> </ol> <p>Option 1 is the recommended and simple way. Option 2 is an overhead and won't work if you output any html before redirection. and Option 3 produces an unnecessary window. </p>
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    1. CO<?php session_start(); $_SESSION['year1']=$_POST['course_year']; ?> ( Im using this session varialble in the first form, i.e the form which containts the HTML code which you typed it now)
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    2. COthis code should be in `report.php`
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    3. COyeah it is in report.php
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