phpjs/experimental/info/get_loaded_extensions.js

php.js offers community built php functions in javascript

function get_loaded_extensions(zend_extensions) {
  // http://kevin.vanzonneveld.net
  // +   original by: Brett Zamir (http://brett-zamir.me)
  // *     example 1: get_loaded_extensions();
  // *     returns 1: ['strings', 'xml']

  var ret = (this.php_js && this.php_js.ini && this.php_js.ini['phpjs.loaded_extensions'] &&
      this.php_js.ini['phpjs.loaded_extensions'].local_value) || false;
  if (ret && zend_extensions) {
    var retNew = [];
    for (var i = 0; i < ret.length; i++) {
      if (ret[i].substr(0, 5) !== 'zend_') { // Fix: Is this correct?
        retNew.push(ret[i]);
      }
    }
    return retNew;
  }
  return ret;
}