title: repeat special character with str_repeat
body: <p>i want to repeat special character &#09; or TAB.</p>
  
  <p>i try with str_repeat(str, int)</p>
  
  <pre><code>//my function repeat
  function tab($num){
      return str_repeat('&amp;#09;', $num);
  }
  
  //if I call
  echo '&lt;table&gt;' . "\r\n";
  echo tab(3) . '&lt;tr&gt;';
  
  //the result
  &lt;table&gt;
  &amp;#09;&amp;#09;&amp;#09&lt;tr&gt;;
  </code></pre>
  
  <p>I have tried several ways with single quote and double quote,
  but the results is always wrong</p>