error reporting

I need to set PHP to write to a file.
When I run this code -

    <?php
error_reporting(E_ALL);ini_set('display_errors', 1);
$myfile = fopen("newfile.txt", "w") ordie("Unable to open file!");
$txt = "John Doe\n";
$txt = "Jane Doe\n";
echo "PHP worked ?";
fclose($myfile);
?>

there are no error messages in FireFox, just a blank screen.
there is a 500 server error in Internet Explorer.

Is there something wrong or the placement of the error_reporting code?
PHP is running properly through the server other than I'm sure there are errors trying to write to the file.

Thanks,

Michael