title: How to insert crrectly opcache_compile_file inside application?
body: <p>1/ I have not knowledge in cache but I would know if it's correct to write this code with <code>opcache_compile_file</code>;</p>
  
  <p>2/ How to check if <code>opcache</code> exits or not ?</p>
  
  <pre><code>  $filename = 'toto.php;
  
    if (is_file($filename)) {
      ob_start();
      opcache_compile_file($filename);
      $new_prods_content .= ob_get_clean();
    } else {
      echo CLICSHOPPING::getDef('template_does_not_exist') . '&lt;br /&gt; ' . $filename;
      exit;
    }
  </code></pre>