diff --git a/plugins/views_plugin_argument_default_php.inc b/plugins/views_plugin_argument_default_php.inc
index c2fb14f..efbe8fd 100644
--- a/plugins/views_plugin_argument_default_php.inc
+++ b/plugins/views_plugin_argument_default_php.inc
@@ -42,7 +42,7 @@ class views_plugin_argument_default_php extends views_plugin_argument_default {
    * default plugin.
    */
   function access() {
-    return user_access('use PHP for settings');
+    return module_exists('php') && user_access('use PHP for settings');
   }
 
   function get_argument() {
diff --git a/plugins/views_plugin_argument_validate_php.inc b/plugins/views_plugin_argument_validate_php.inc
index 83b22b4..7d021da 100644
--- a/plugins/views_plugin_argument_validate_php.inc
+++ b/plugins/views_plugin_argument_validate_php.inc
@@ -35,7 +35,7 @@ class views_plugin_argument_validate_php extends views_plugin_argument_validate
    * validate plugin.
    */
   function access() {
-    return user_access('use PHP for settings');
+    return module_exists('php') && user_access('use PHP for settings');
   }
 
   function convert_options(&$options) {
diff --git a/views.module b/views.module
index fe3b4e8..89b42f9 100644
--- a/views.module
+++ b/views.module
@@ -974,7 +974,7 @@ function views_invalidate_cache() {
  * code and PHP is more locked down than administer views.
  */
 function views_import_access() {
-  return user_access('administer views') && user_access('use PHP for settings');
+  return module_exists('php') && user_access('administer views') && user_access('use PHP for settings');
 }
 
 /**