<?php // testfile.php
  $fh = fopen("testfile.txt", 'w') or die("Failed to create file");

  $text = <<<_END
Line 1
Line 2
Line 3
_END;

  fwrite($fh, $text) or die("Could not write to file");
  fclose($fh);
  echo "File 'testfile.txt' written successfully";
?>