What is wrong with this!
PHP Code:
<?php
echo "<pre>";
echo "<textarea name=\"codeview\" cols=\"80\" rows=\"15\" id=\"codeview\">";
if (!($f=fopen("test.txt","r"))) 
exit("Unable to open file.");
while (!feof($f)) 
{ 
$x=fgetc($f); 
echo $x;
}
echo "</textarea>";
echo "</pre>";
fclose($f);

if($_POST['save']){
$code = $_REQUEST['codeview'];
echo "$code";
}

?>
<html>
<form name="save" method="post" action="test.php">
Save.<br>
<input type="submit" name="save" value="Save.">
</form></html>