diff --git a/httprl.async.inc b/httprl.async.inc
index 986d967..f5046e5 100644
--- a/httprl.async.inc
+++ b/httprl.async.inc
@@ -21,16 +21,8 @@ function httprl_async_page() {
     httprl_fast403();
   }
 
-  // See if a full bootstrap has been done given the Drupal version.
-  if (defined('VERSION') && substr(VERSION, 0, 1) >= 7) {
-    $level = drupal_bootstrap();
-    $full_bootstrap = ($level == DRUPAL_BOOTSTRAP_FULL) ? TRUE : FALSE;
-  }
-  else {
-    $full_bootstrap = isset($GLOBALS['multibyte']) ? TRUE : FALSE;
-  }
   // Get the private key.
-  $private_key = $full_bootstrap ? drupal_get_private_key() : httprl_variable_get('drupal_private_key', 0);
+  $private_key = httprl_drupal_get_private_key();
 
   // Exit if the master_key does not match the md5 of $private_key.
   if (   empty($private_key)
@@ -56,42 +48,27 @@ function httprl_async_page() {
   }
 
   // Release the lock.
-  if (variable_get('lock_inc', './includes/lock.inc') !== './includes/lock.inc') {
-    lock_release($_POST['temp_key']);
-  }
-  else {
-    httprl_lock_release($_POST['temp_key']);
-  }
+  httprl_lock_release($_POST['temp_key']);
 
-  // Unpack arguments.
-  $input_args = unserialize($_POST['args']);
+  $args = unserialize($_POST['args']);
 
-  // Pass by reference trick for call_user_func_array().
-  $args = array();
-  foreach ($input_args as &$arg) {
-    $args[] = &$arg;
+  // Run the function.
+  if (!empty($_POST['function'])) {
+     $data = httprl_run_function($_POST['function'], $args);
+  }
+  // Run an array of functions.
+  else {
+    $args = current($args);
+    $data = httprl_run_array($args);
   }
-
-  // Caputure anything printed out.
-  ob_start();
-  // Run function.
-  $return = call_user_func_array($_POST['function'], $args);
-  $printed = ob_get_contents();
-  ob_end_clean();
 
   // Return data to caller.
-  if (!empty($_POST['mode'])) {
+  if (!empty($_POST['mode']) && isset($data)) {
     header('Content-Type: application/x-www-form-urlencoded');
-    $data = array('return' => $return, 'args' => $args, 'printed' => $printed);
     echo http_build_query(array(0 => serialize($data)), '', '&');
   }
 
   // Exit Script.
-  if (defined('VERSION') && substr(VERSION, 0, 1) >= 7) {
-    drupal_exit();
-  }
-  else {
-    exit;
-  }
+  httprl_call_exit();
 }
 
diff --git a/httprl.module b/httprl.module
index 263493d..7e351d9 100644
--- a/httprl.module
+++ b/httprl.module
@@ -1205,18 +1205,38 @@ function httprl_extract_background_callback_data(&$result) {
   $data = unserialize(current($data));
 
   // Set return and printed values.
-  $result->options['internal_states']['background_function_return'] = $data['return'];
-  $result->options['internal_states']['background_function_printed'] = $data['printed'];
+  if (isset($data['return'])) {
+    $result->options['internal_states']['background_function_return'] = $data['return'];
+  }
+  if (isset($data['printed'])) {
+    $result->options['internal_states']['background_function_printed'] = $data['printed'];
+  }
 
   // Set any pass by reference values.
-  foreach ($result->options['internal_states']['background_function_args'] as $k => &$value) {
-    if (isset($data['args'][$k])) {
-      $value = $data['args'][$k];
+  httprl_recursive_array_reference_extract($result->options['internal_states']['background_function_args'], $data['args']);
+}
+
+function httprl_recursive_array_reference_extract(&$array, $data) {
+  foreach ($array as $key => &$value) {
+    if (isset($data[$key])) {
+      if (is_array($data[$key]) && is_array($value)) {
+        $value = httprl_recursive_array_reference_extract($value, $data[$key]);
+      }
+      else {
+        $value = $data[$key];
+      }
     }
     else {
       $value = NULL;
     }
   }
+  // Copy new keys into the data structure.
+  foreach ($data as $key => $value) {
+    if (isset($array[$key])) {
+      continue;
+    }
+    $array[$key] = $value;
+  }
 }
 
 /**
@@ -1290,6 +1310,9 @@ function httprl_queue_background_callback(&$args, &$result = NULL) {
   if (!isset($callback_options['printed'])) {
     $callback_options['printed'] = '';
   }
+  if (!isset($callback_options['function'])) {
+    $callback_options['function'] = '';
+  }
 
   // Acquire lock for this run.
   $locked = FALSE;
@@ -1306,15 +1329,17 @@ function httprl_queue_background_callback(&$args, &$result = NULL) {
     unset($locks[$id]);
 
     // Remove the lock_id reference in the database.
-    if (defined('VERSION') && substr(VERSION, 0, 1) >= 7) {
-      db_update('semaphore')
-        ->fields(array('value' => 'httprl'))
-        ->condition('name', $id)
-        ->condition('value', _lock_id())
-        ->execute();
-    }
-    else {
-      db_query("UPDATE {semaphore} SET value = '%s' WHERE name = '%s' AND value = '%s'", 'httprl', $name, _lock_id());
+    if (variable_get('lock_inc', './includes/lock.inc') !== './includes/lock.inc') {
+      if (defined('VERSION') && substr(VERSION, 0, 1) >= 7) {
+        db_update('semaphore')
+          ->fields(array('value' => 'httprl'))
+          ->condition('name', $id)
+          ->condition('value', _lock_id())
+          ->execute();
+      }
+      else {
+        db_query("UPDATE {semaphore} SET value = '%s' WHERE name = '%s' AND value = '%s'", 'httprl', $id, _lock_id());
+      }
     }
   }
 
@@ -1561,12 +1586,7 @@ function httprl_fast403() {
   print '</body></html>';
 
   // Exit Script.
-  if (defined('VERSION') && substr(VERSION, 0, 1) >= 7) {
-    drupal_exit();
-  }
-  else {
-    exit;
-  }
+  httprl_call_exit();
 }
 
 /**
@@ -1578,16 +1598,21 @@ function httprl_fast403() {
  *   The name of the lock.
  */
 function httprl_lock_release($name) {
-  global $locks;
-
-  unset($locks[$name]);
-  if (defined('VERSION') && substr(VERSION, 0, 1) >= 7) {
-    db_delete('semaphore')
-      ->condition('name', $name)
-      ->execute();
+  if (variable_get('lock_inc', './includes/lock.inc') !== './includes/lock.inc') {
+    lock_release($_POST['temp_key']);
   }
   else {
-    db_query("DELETE FROM {semaphore} WHERE name = '%s'", $name);
+    global $locks;
+
+    unset($locks[$name]);
+    if (defined('VERSION') && substr(VERSION, 0, 1) >= 7) {
+      db_delete('semaphore')
+        ->condition('name', $name)
+        ->execute();
+    }
+    else {
+      db_query("DELETE FROM {semaphore} WHERE name = '%s'", $name);
+    }
   }
 }
 
@@ -1772,7 +1797,7 @@ function httprl_variable_get($name, $default = NULL) {
  *        ),
  *       'return' => what was returned from this call.
  *       'printed' => what was printed from this call.
- *       'error' => any errors that might have occured.
+ *       'error' => any errors that might have occurred.
  *       'last' => set the last variable to anything.
  *     )
  *   )
@@ -1780,13 +1805,18 @@ function httprl_variable_get($name, $default = NULL) {
 function httprl_run_array(&$array) {
   $last = NULL;
   foreach ($array as &$data) {
+    // Skip if no type is set.
+    if (!isset($data['type'])) {
+      continue;
+    }
+
     // Set the last variable if so desired.
     if (isset($data['last'])) {
       $last = $data['last'];
     }
 
     // Replace the last key with the last thing that has been returned.
-    if (array_key_exists('last', $data['args'])) {
+    if (isset($data['args']) && array_key_exists('last', $data['args'])) {
       $data['args']['last'] = $last;
       $data['args'] = array_values($data['args']);
     }
@@ -1798,8 +1828,10 @@ function httprl_run_array(&$array) {
 
     // Pass by reference trick for call_user_func_array().
     $args = array();
-    foreach ($data['args'] as &$arg) {
-      $args[] = &$arg;
+    if (isset($data['args']) && is_array($data['args'])) {
+      foreach ($data['args'] as &$arg) {
+        $args[] = &$arg;
+      }
     }
 
     // Start to capture errors.
@@ -1835,4 +1867,102 @@ function httprl_run_array(&$array) {
       $data['return'] = $last;
     }
   }
+
+  return array('args' => array($array));
+}
+
+/**
+ * Run a single function.
+ *
+ * @param $function
+ *   Name of function to run.
+ * @param $input_args
+ *   list of arguments to pass along to the function.
+ */
+function httprl_run_function($function, &$input_args) {
+  // Pass by reference trick for call_user_func_array().
+  $args = array();
+  foreach ($input_args as &$arg) {
+    $args[] = &$arg;
+  }
+
+  // Capture anything printed out.
+  ob_start();
+
+  // Start to capture errors.
+  $track_errors = ini_set('track_errors', '1');
+  $php_errormsg = '';
+
+  // Run function.
+  $return = call_user_func_array($function, $args);
+  $printed = ob_get_contents();
+  ob_end_clean();
+
+  // Create data array.
+  $data = array('return' => $return, 'args' => $args, 'printed' => $printed);
+
+  // Set any errors if any where thrown.
+  if (!empty($php_errormsg)) {
+    $data['error'] = $php_errormsg;
+    ini_set('track_errors', $track_errors);
+  }
+
+  return $data;
+}
+
+function httprl_boot() {
+  global $base_root;
+  $full_url = $base_root . request_uri();
+
+  // Return if this is not a httprl_async_function_callback request.
+  if (   strpos($full_url, '/httprl_async_function_callback') === FALSE
+      || $_SERVER['REQUEST_METHOD'] !== 'POST'
+      || empty($_POST['master_key'])
+      || empty($_POST['temp_key'])
+      || strpos($_POST['temp_key'], 'httprl_') !== 0
+      || !empty($_POST['function'])
+        ) {
+    return NULL;
+  }
+
+  module_load_include('inc', 'httprl', 'httprl.async');
+  httprl_async_page();
+}
+
+/**
+ * Gets the private key variable.
+ *
+ * @return
+ *   The private key.
+ */
+function httprl_drupal_get_private_key() {
+  // See if a full bootstrap has been done given the Drupal version.
+  if (defined('VERSION') && substr(VERSION, 0, 1) >= 7) {
+    $level = drupal_bootstrap();
+    $full_bootstrap = ($level == DRUPAL_BOOTSTRAP_FULL) ? TRUE : FALSE;
+  }
+  else {
+    $full_bootstrap = isset($GLOBALS['multibyte']) ? TRUE : FALSE;
+  }
+
+  $private_key = $full_bootstrap ? drupal_get_private_key() : httprl_variable_get('drupal_private_key', 0);
+  return $private_key;
+}
+
+/**
+ * Performs end-of-request tasks and/or call exit directly.
+ */
+function httprl_call_exit() {
+  if (defined('VERSION') && substr(VERSION, 0, 1) >= 7 && drupal_get_bootstrap_phase() == DRUPAL_BOOTSTRAP_FULL) {
+    drupal_exit();
+  }
+  else {
+    exit;
+  }
+}
+
+function asdf(&$x, &$y, &$z) {
+  $x = 'asdf';
+  $y = 'qwer';
+  $z = 'zxcv';
 }
diff --git a/httprl.nonblocktest.inc b/httprl.nonblocktest.inc
index eb5d4d9..3289b1d 100644
--- a/httprl.nonblocktest.inc
+++ b/httprl.nonblocktest.inc
@@ -17,23 +17,16 @@ function httprl_nonblockingtest_page() {
   if (   empty($_GET['id'])
       || empty($_GET['key'])
       || strpos($_GET['id'], 'httprl_') !== 0
-      || $_GET['key'] != md5(drupal_get_private_key())
+      || $_GET['key'] != md5(httprl_drupal_get_private_key())
         ) {
     httprl_fast403();
   }
 
   // Release the lock, echo out that the lock was cleared and exit.
-  if (variable_get('lock_inc', './includes/lock.inc') !== './includes/lock.inc') {
-    lock_release($_GET['id']);
-  }
-  else {
-    httprl_lock_release($_GET['id']);
-  }
+  httprl_lock_release($_GET['id']);
+
   echo t('lock @id cleared', array('@id' => $_GET['id']));
-  if (defined('VERSION') && substr(VERSION, 0, 1) >= 7) {
-    drupal_exit();
-  }
-  else {
-    exit;
-  }
+
+  // Exit Script.
+  httprl_call_exit();
 }