can anyone make me a simple script to write text to a log file on server...

<?php

$pass = $_GET['password'];
$text = $_GET['text'];

if($pass = "blah")
{
$file = fopen("log.txt","w"); 
echo fwrite($file,$text) . " bytes written.";
fclose($file);
}
else
{
echo "Incorrect password!";
}

?>

<?php

isset($_GET['pass'])    or die('you need a password');
$_GET['pass'] == 'blah' or die('wrong password');
isset($_GET['text'])    or die('you need to specify text');

file_put_contents('log.txt', $_GET['text']);

?>

<?php
file_put_contents('log.txt', $_GET['text'], FILE_APPEND);
?>