etl.php

<?php

function fixName($value) {
  $value = mb_eregi_replace('й', 'й', $value);
  $value = mb_eregi_replace('ё', 'ё', $value);
  return $value;
}

function getDirs($path) {
  return array_diff(scandir($path), array('..', '.'));
}

function mapFile($handle, $cb, $separator = '\n') {
  while (!feof($handle)) {
    //$buffer = fgets($handle);
    $buffer = stream_get_line($fp, 65535, $separator);
    yeild $cb($buffer);
  }
  fclose($handle);
}

$input = 'input.txt';
$output = 'output.txt';

$inputHandle = fopen($input, 'r');
$outputHandle = fopen($input, 'w');



fclose($inputHandle);
fclose($outputHandle);