1337 speak in php

[PHP]<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title></title>
</head>
<body>
<form name="frmLeet" action="http://localhost/leetspeek/index.phpⓘ" method="POST">
<p>Enter your message</p>
<textarea name="sentence" rows="4" cols="60"></textarea>
</ br>
<input type="submit" value="SUBMIT" name="Convert message" />


<?php
// put your code here
// stri[ thee data
IF ($_POST == null)
{return;}


$sentence = $_POST["sentence"];
$leet = $sentence;
$leet = str_ireplace("e","3",$leet ) ;

//output
echo "$sentence<br />";
echo "is converted to <br />";
echo "$leet<br />";


?>

</form>
</body>
</html>[/PHP]









ONLY DOSE

$leet = str_ireplace("e","3",$leet ) ;

REPLACE E WITH 3
all i did....

YOU CAN EDIT AND ADD MORE!

Does*

and I think it converts the word "leet" to "l33t"
Although a converter from noob to proper english would be more useful.

1) The action in your form can just set on #.
2) A form has no name needed -> delete!
3) Wrong way to check whether your form has been sent.
4) Variables should not be in quotes!
5) $leet = $sentence; is not necessary!

[php]<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title></title>
</head>
<body>
<form action="#" method="post">
<p>Enter your message</p>
<textarea name="sentence" rows="4" cols="60"></textarea>
<br/>
<input type="submit" value="SUBMIT" name="Convert message" />

<?php
// put your code here
// stri[ thee data
if($_SERVER['REQUEST_METHOD'] == 'POST')
{
if(isset($_POST['sentence']))
{
$sentence = $_POST["sentence"];
$leet = str_ireplace("e","3",$sentence ) ;

//output
echo $sentence."<br/>";
echo "is converted to <br/>";
echo $leet."<br/>";
}
}
?>
</form>
</body>
</html>[/php]

yearupi, id do something like

if($_POST['Convert message'] == "SUBMIT")
{