Php Session issue? -


i have stored error message in session variable , gets displayed on page when condition becomes false. now, want on refreshing page message disappear , freeing session variable.

code : to show error message

<?php  if (isset($_session['er'])): //showing errors on salary form  ?>     <div class="form-errors">         <?php foreach ($_session['er'] $mistake): ?>                   <p> <?php echo $mistake ?> </p>         <?php endforeach ;?>     </div> <?php endif; ?>

storing error

$_session['er'] = array("salary must between 10000 , 80000."); header("location:addsalary.php");

just unset right after printed error. shown once

<?php if (isset($_session['er'])): //showing errors on salary form  ?>   <div class="form-errors">     <?php foreach ($_session['er'] $mistake): ?>       <p> <?php echo $mistake ?> </p>         <?php endforeach ;?>   </div> <?php unset($_session['er']); ?> <?php endif; ?>

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