Can someone check my code, I don't know what's wrong with it. Whenever I execute the code, I get that error in the title.
<?php
$file = "newfile.txt";
$text = "This is a text line. ";
$handle = fopen($file, "w");
fwrite($handle, $text);
fclose($handle);
$handle = fopen($file, "a");
$text = "Here are more text lines to insert."
fwrite($handle, $text);
fclose($handle);
include ($file);
?>