title: Would writing HTML with PHP's echo vs writing plain HTML cause any differences in performance?
body: <p>Which is better in terms of CPU optimization for a web server? Writing plain HTML and inserting PHP code here and there?</p>
  
  <pre><code>&lt;script type="text/javascript"&gt;$(document).ready(function(){$('#search').focus();});&lt;/script&gt;
  &lt;div id="default"&gt;
      &lt;div class="left"&gt;
          &lt;?include(DIR_DIV.'facebook.php')?&gt;
      &lt;/div&gt;
      &lt;div class="right"&gt;
          &lt;?include(DIR_ADS.'google.300x250.php')?&gt;
      &lt;/div&gt;
      &lt;div class="sep"&gt;&lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>Or writing the all the HTML with echo in PHP?</p>
  
  <pre><code>echo '&lt;script type="text/javascript"&gt;$(document).ready(function(){$(\'#search\').focus();});&lt;/script&gt;';
  echo '&lt;div id="default"&gt;';
      echo '&lt;div class="left"&gt;';
          include(DIR_ADS.'google.300x250.php');
      echo '&lt;/div&gt;';
      echo '&lt;div class="right"&gt;';
          include(DIR_DIV.'facebook.php');
      echo '&lt;/div&gt;';
      echo '&lt;div class="sep"&gt;&lt;/div&gt;';
  echo '&lt;/div&gt;'
  </code></pre>
  
  <p>Does the difference even matter or is it insignificant?</p>