<html>
<head>
<title> Append to wherever ou want in the file</title>
</head>
<body>
To add a line, simply append "?input=<text>" at the end of the URL.
<?php
$filename = "file.txt";
$fd = fopen ($filename, "r");
$contents = fread ($fd, filesize ($filename));
fclose ($fd);
$input = $_REQUEST["input"];
if($input){
$fd = fopen ($filename, "w");
$contents = preg_replace("/<!-- NEW NEWSITEM -->/", "<!-- NEW NEWSITEM -->\r\n".stripslashes($input), $contents);
fwrite($fd,$contents);
fclose ($fd);
}
$output = nl2br(htmlspecialchars($contents));
echo "<h3>The file contains:</h3>".$output;
?>
</body>
</head>