forum in php

<html>
<title>FraChan</title>

<head>
<style>
body {
  background: #EEF2FF url('//media.8kun.top/stylesheets/img/fade-blue.png') repeat-x 50% 0%;
  color: black;
  font-family: arial,helvetica,sans-serif;
  font-size: 10pt;
  margin: 0 4px;
  padding-left: 4px;
  padding-right: 4px;
  font-size. 16px;
  font-family: monospace;
}

a,a:visited {
  text-decoration: underline;
  color: #34345C;
  font-family: monospace;
}

a:hover,.intro a.post_no:hover {
  color: #ff0000;
  font-family: monospace;
}

hr {
 border: none;
 background: #2E304B;
 height: 1px;
}


}
table,tr,th,td {

	border: 1px solid #000333;
	padding: 4px 15px 5px 5px;

	background: #98E;
	color: #000333;
	text-align: left;
	white-space: nowrap;
    font-family: monospace;
}

#pulsante {
outline: none;
cursor: pointer;
text-align: center;
text-decoration: none;
font: bold 12px Arial, Helvetica, sans-serif;
color: #fff;
padding: 10px 20px;
border: solid 1px #0076a3;
background: #0095cd;
}
rules {
	/*font-size:0.7em;*/
	width: 468px;
	font-size: 13px;

}


reply {

 background: #D6DAF0;
  margin: 0.2em 4px;
  padding: 0.5em 0.3em 0.5em 0.6em;
  border-width: 1px;
  border-style: none solid solid none;
  border-color: #B7C5D9;
  display: inline-block;
  max-width: 94%!important;
  font-family: monospace;
}
h1,h2,h3,h4  {
  color: #AF0A0F;

font-family: monospace;
  margin: 0;
  padding: 0;


}

spoiler {
	background: black;
	color: black;
}
spoiler:hover {
	background: black;
	color: white;
    font-family: monospace;
}


quote {
   padding:10px;

font-family: monospace;
color: green;
}
input, textarea {
  text-align: left;
  float: center;
  padding: 3px;
  padding-top: 0px;
  border: 1px solid black;
  margin: 2px

}
rules {
	/*font-size:0.7em;*/
	width: 468px;
	font-size: 13px;
	font-family: monospace;
}
</style>
<body>

<center>

<form action="tuoforum.php" method="post">

<br><strong>Titolo(obbligatorio)</strong>:
<br><input type="text" name="title" size="34" required>

<br><strong>Messaggio</strong>:
<br><textarea name="msg" cols="66" rows="15"></textarea>
<p><input type="submit" name="invio"  id="pulsante" value="Nuovo filo"></p>
</form>
<h2>Regole</h2>
<li>Inserisci le regole del tuo forum</li>

</center>

<?php


$title = $_POST["title"];

$msg = $_POST["msg"];

$data = date('Y-m-d');

function rispondi() {
 echo "<strong>Rispondi al filo</strong>\n";
 echo "<form action=\"tuoforum.php\" method=\"post\">\n";


    echo "<strong>Messaggio</strong>:<br>\n";
    echo "<textarea name=\"testo\" cols=\"66\" rows=\"15\">";
    echo "</textarea><br><br>\n\n";

    echo "<input type=\"submit\" value=\"Rispondi\" name=\"rispondi\">\n";
    echo "</form>\n";

$testo = $_POST["testo"];

if(isset($_POST["rispondi"])) {

echo '<reply>' .$testo. '</reply>';
}
}


if(isset($_POST["invio"])) {

echo '<h1>' .$title. '</h1>' .'<p>' .$data. '</p>' .$msg ;
echo rispondi();
}
?>
</body>
</head>
</html>