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Hey all, I have some problems with this script when i post a comment and try to refresh page in Firefox it re-send data, but in Chrome and Opera is not re-send this is all in comments.php and i include it in other file <h4 class="h3-title">Comments</h4><small><?php if (!isset($_SESSION['username'])) { echo 'You must be looged in to post comments'; } ?></small> <hr /> <?php // list all comments if (isset($_GET['id'])) { $id = (int)$_GET['id']; $list_all_comments = $comments->list_comments($id); foreach ($list_all_comments as $comm) { echo '<i>' . $comm['comment_author'] . ' - <small>' . date('m F Y h.m.s', $comm['comment_date']) . '</small></i><br />'; echo '<p>' . $comm['comment_body'] . '</p><hr />'; } } // show comment form only for logged in users if (isset($_SESSION['username'])) { // process form data if (isset($_POST['comment'])) { if (isset($_GET['id'])) { $news_id = (int)$_GET['id']; $author = $_SESSION['username']; $body = trim(htmlentities($_POST['body'])); $date = time(); if (!empty($body)) { // add_comment($author, $body, $date, $news_id) $insert_comment = $comments->add_comment($author, $body, $date, $news_id); // refresh page after adding data echo '<meta http-equiv="refresh" content="0">'; } } } ?> <form action="" method="POST"> <textarea name="body" cols="75" rows="6" autofocus required></textarea><br /> <input type="submit" name="comment" value="Submit"> </form> <?php } ?>