title: constant like PHP_EOL for tabulation php
body: <p>Please help,
  how can i find the constant like PHP_EOL for tabulation
  My code wrote file which has a lot of generated tabulations and new lines
  new lines wrote correctly, but i have a lot of "\t\t"
  see example:</p>
  
  <pre><code>common.app \t/loader \t/growl \t\t/error \t/form
  </code></pre>