diff --git a/README.md b/README.md
index 3ef8cf3..72f2261 100644
--- a/README.md
+++ b/README.md
@@ -27,7 +27,7 @@ $obj = null; // outputs "Object destroyed"
 
 This extension adds `Weak` namespace and all entities are created inside it.
 
-There are no INI setting, constants or exceptions provided by this extension.
+There are no INI setting or constants provided by this extension.
 
 Brief docs about [`Weak\Reference` class](./stubs/weak/Reference.php) and [functions](./stubs/weak/functions.php)
 may be seen in [stub files](./stubs/weak).
@@ -35,6 +35,7 @@ may be seen in [stub files](./stubs/weak).
 Short list if what provided by this extension is:
 
   - `class Weak\Reference`
+  - `class Weak\NotifierException extend Exception`
   - `function Weak\refcounted()`
   - `function Weak\refcount()`
   - `function Weak\weakrefcounted()`
@@ -51,8 +52,9 @@ Note that notification happens *after* referent object destruction, so at the ti
 will return `null` (unless rare case when object refcount get incremented in destructor, e.g. by storing destructing value
 somewhere else).
 
-Callback notifier will not be called if referent object destructor or previous notifier callback throws exception, whether
-array notifier get executed even in such cases.
+If object destructor or one or more notifiers throw exception, all further notifier callbacks will be called as if
+that exception was thrown inside `try-catch` block. In case one or more exception was thrown, `Weak\NotifierException`
+will be thrown and all thrown exceptions will be available via `Weak\NotifierException::getExceptions()` method.
 
 
 ### Cloning
@@ -157,16 +159,28 @@ You may also want to add php-weak extension as a [composer.json dependency](http
 with custom one, which meta-code is:
 
 ```php
-run_original_dtor_obj($object);
+$exceptions = [];
+
+try {
+    run_original_dtor_obj($object);
+} catch(Throwable $e) {
+    $exceptions[] = $e;
+}
 
 foreach($weak_references as $weak_ref_object_handle => $weak_reference) {
     if (is_array($weak_reference->notifier)) {
         $weak_reference->notifier[] = $weak_reference;
-    } elseif (is_callable($weak_reference->notifier) && $no_exception_thrown) {
-        $weak_reference->notifier($weak_reference);
+    } elseif (is_callable($weak_reference->notifier)) {
+        try {
+            $weak_reference->notifier($weak_reference);
+        } catch(Throwable $e) {
+            $exceptions[] = $e;
+        }
     }
-    
-    unset($weak_references[$weak_ref_object_handle]);
+}
+
+if ($exceptions) {
+    throw new Weak\NotifierException('One or more exceptions thrown during notifiers calling', $exceptions);
 }
 ```
 
diff --git a/config.m4 b/config.m4
index 93cc9c2..8b77cda 100644
--- a/config.m4
+++ b/config.m4
@@ -27,9 +27,10 @@ if test "$PHP_WEAK" != "no"; then
         fi
     fi
 
-    PHP_NEW_EXTENSION(weak, [   \
-        weak.c                  \
-        php_weak_reference.c    \
-        php_weak_functions.c    \
+    PHP_NEW_EXTENSION(weak, [           \
+        weak.c                          \
+        php_weak_notifier_exception.c   \
+        php_weak_reference.c            \
+        php_weak_functions.c            \
     ], $ext_shared,, -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1)
 fi
diff --git a/config.w32 b/config.w32
index 563b40c..c09ddcb 100644
--- a/config.w32
+++ b/config.w32
@@ -4,5 +4,5 @@
 ARG_ENABLE("weak", "enable weak support", "no");
 
 if (PHP_WEAK != "no") {
-	EXTENSION("weak", "weak.c php_weak_reference.c php_weak_functions.c", PHP_WEAK_SHARED, "/DZEND_ENABLE_STATIC_TSRMLS_CACHE=1");
+	EXTENSION("weak", "weak.c php_weak_notifier_exception.c php_weak_reference.c php_weak_functions.c", PHP_WEAK_SHARED, "/DZEND_ENABLE_STATIC_TSRMLS_CACHE=1");
 }
diff --git a/php_weak_notifier_exception.c b/php_weak_notifier_exception.c
new file mode 100644
index 0000000..f91b288
--- /dev/null
+++ b/php_weak_notifier_exception.c
@@ -0,0 +1,131 @@
+/*
+  +----------------------------------------------------------------------+
+  | This file is part of the pinepain/php-weak PHP extension.            |
+  |                                                                      |
+  | Copyright (c) 2016 Bogdan Padalko <zaq178miami@gmail.com>            |
+  |                                                                      |
+  | Licensed under the MIT license: http://opensource.org/licenses/MIT   |
+  |                                                                      |
+  | For the full copyright and license information, please view the      |
+  | LICENSE file that was distributed with this source or visit          |
+  | http://opensource.org/licenses/MIT                                   |
+  +----------------------------------------------------------------------+
+*/
+
+#include "php_weak_notifier_exception.h"
+#include "php_weak.h"
+#include "zend_exceptions.h"
+
+
+zend_class_entry *php_weak_notifier_exception_class_entry;
+#define this_ce php_weak_notifier_exception_class_entry
+
+
+static zend_object *php_weak_notifier_exception_ctor(zend_class_entry *ce) /* {{{ */
+{
+    zval obj, thrown;
+    zend_object *object;
+
+    Z_OBJ(obj) = object = ce->parent->create_object(ce);
+
+    array_init_size(&thrown, 0);
+    zend_update_property(php_weak_notifier_exception_class_entry, &obj, ZEND_STRL("exceptions"), &thrown);
+
+    return object;
+} /* }}} */
+
+
+void php_weak_create_notifier_exception(zval *exception, const char *message, zval *thrown) /* {{{ */
+{
+    object_init_ex(exception, this_ce);
+    zend_update_property_string(zend_ce_exception, exception, ZEND_STRL("message"), message);
+    zend_update_property(php_weak_notifier_exception_class_entry, exception, ZEND_STRL("exceptions"), thrown);
+} /* }}} */
+
+static PHP_METHOD(NotifierException, __construct)  /* {{{ */
+{
+	zend_string *message = NULL;
+	zend_long   code = 0;
+
+	zval  tmp;
+    zval *exceptions = NULL;
+    zval *previous = NULL;
+
+    if (zend_parse_parameters(ZEND_NUM_ARGS(), "|SalO!", &message, &exceptions, &code, &previous, zend_ce_throwable) == FAILURE) {
+        return;
+    }
+
+    if (message) {
+		zend_update_property_str(zend_ce_exception, getThis(), ZEND_STRL("message"), message);
+	}
+
+    if (exceptions) {
+        zend_update_property(this_ce, getThis(), ZEND_STRL("exceptions"), exceptions);
+    } else {
+        array_init_size(&tmp, 0);
+        zend_update_property(this_ce, getThis(), ZEND_STRL("exceptions"), &tmp);
+    }
+
+    if (code) {
+        zend_update_property_long(zend_ce_exception, getThis(), ZEND_STRL("code"), code);
+	}
+
+	if (previous) {
+        zend_update_property(zend_ce_exception, getThis(), ZEND_STRL("previous"), previous);
+    }
+}
+
+static PHP_METHOD(NotifierException, getExceptions)  /* {{{ */
+{
+    zval rv;
+
+    if (zend_parse_parameters_none() == FAILURE) {
+        return;
+    }
+
+    RETVAL_ZVAL(zend_read_property(php_weak_notifier_exception_class_entry, getThis(), ZEND_STRL("exceptions"), 0, &rv), 1, 0);
+} /* }}} */
+
+
+ZEND_BEGIN_ARG_INFO_EX(arginfo_notifier_exception___construct, ZEND_SEND_BY_VAL, ZEND_RETURN_VALUE, 0)
+	ZEND_ARG_INFO(0, message)
+    ZEND_ARG_INFO(0, exceptions)
+	ZEND_ARG_INFO(0, code)
+	ZEND_ARG_INFO(0, previous)
+ZEND_END_ARG_INFO()
+
+ZEND_BEGIN_ARG_INFO_EX(arginfo_notifier_exception_getExceptions, ZEND_SEND_BY_VAL, ZEND_RETURN_VALUE, 0)
+ZEND_END_ARG_INFO()
+
+
+static const zend_function_entry php_weak_notifier_exception_methods[] = { /* {{{ */
+        PHP_ME(NotifierException, __construct,   arginfo_notifier_exception___construct,   ZEND_ACC_PUBLIC | ZEND_ACC_CTOR)
+        PHP_ME(NotifierException, getExceptions, arginfo_notifier_exception_getExceptions, ZEND_ACC_PUBLIC)
+
+        PHP_FE_END
+}; /* }}} */
+
+
+PHP_MINIT_FUNCTION (php_weak_notifier_exception) /* {{{ */
+{
+    zend_class_entry ce;
+
+    INIT_NS_CLASS_ENTRY(ce, PHP_WEAK_NS, "NotifierException", php_weak_notifier_exception_methods);
+    this_ce = zend_register_internal_class_ex(&ce, zend_ce_exception);
+    /*this_ce->create_object = php_weak_notifier_exception_ctor;*/
+
+    zend_declare_property_null(this_ce, ZEND_STRL("exceptions"), ZEND_ACC_PRIVATE);
+
+
+    return SUCCESS;
+} /* }}} */
+
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ * vim600: noet sw=4 ts=4 fdm=marker
+ * vim<600: noet sw=4 ts=4
+ */
diff --git a/php_weak_notifier_exception.h b/php_weak_notifier_exception.h
new file mode 100644
index 0000000..2d1b675
--- /dev/null
+++ b/php_weak_notifier_exception.h
@@ -0,0 +1,41 @@
+/*
+  +----------------------------------------------------------------------+
+  | This file is part of the pinepain/php-weak PHP extension.            |
+  |                                                                      |
+  | Copyright (c) 2016 Bogdan Padalko <zaq178miami@gmail.com>            |
+  |                                                                      |
+  | Licensed under the MIT license: http://opensource.org/licenses/MIT   |
+  |                                                                      |
+  | For the full copyright and license information, please view the      |
+  | LICENSE file that was distributed with this source or visit          |
+  | http://opensource.org/licenses/MIT                                   |
+  +----------------------------------------------------------------------+
+*/
+
+#ifndef PHP_WEAK_NOTIFIER_EXCEPTION_H
+#define PHP_WEAK_NOTIFIER_EXCEPTION_H
+
+#include "php.h"
+
+#ifdef ZTS
+#include "TSRM.h"
+#endif
+
+extern zend_class_entry *php_weak_notifier_exception_class_entry;
+
+void php_weak_create_notifier_exception(zval *exception, const char *message, zval *thrown);
+
+PHP_MINIT_FUNCTION(php_weak_notifier_exception);
+
+
+#endif /* PHP_WEAK_NOTIFIER_EXCEPTION_H */
+
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ * vim600: noet sw=4 ts=4 fdm=marker
+ * vim<600: noet sw=4 ts=4
+ */
diff --git a/php_weak_reference.c b/php_weak_reference.c
index ba16177..8ad9ef9 100644
--- a/php_weak_reference.c
+++ b/php_weak_reference.c
@@ -13,6 +13,7 @@
 */
 
 #include "php_weak_reference.h"
+#include "php_weak_notifier_exception.h"
 #include "php_weak.h"
 #include "zend_exceptions.h"
 #include "zend_interfaces.h"
@@ -32,6 +33,7 @@ static zend_object_get_debug_info_t spl_object_storage_get_debug_info_orig_handl
 
 php_weak_reference_t *php_weak_reference_init(zval *this_ptr, zval *referent_zv, zval *notifier_zv);
 
+static inline void php_weak_store_exceptions(zval *exceptions, zval *tmp);
 static int php_weak_reference_check_notifier(zval *notifier, zval *this);
 
 
@@ -197,17 +199,29 @@ void php_weak_reference_call_notifier(zval *reference, zval *notifier) /* {{{ */
 
 } /* }}} */
 
+
 void php_weak_referent_object_dtor_obj(zend_object *object) /* {{{ */
 {
     php_weak_referent_t *referent = php_weak_referent_find_ptr(object->handle);
 
+    zval exceptions;
+    zval tmp;
+
+    ZVAL_UNDEF(&exceptions);
+
     assert(NULL != referent);
     assert(NULL != PHP_WEAK_G(referents));
 
     zend_ulong handle;
     php_weak_reference_t *reference;
 
-    referent->original_handlers->dtor_obj(object);
+    if (referent->original_handlers->dtor_obj) {
+        referent->original_handlers->dtor_obj(object);
+
+        if (EG(exception)) {
+            php_weak_store_exceptions(&exceptions, &tmp);
+        }
+    }
 
     ZEND_HASH_REVERSE_FOREACH_PTR(&referent->weak_references, reference) {
         handle = _p->h;
@@ -221,11 +235,12 @@ void php_weak_referent_object_dtor_obj(zend_object *object) /* {{{ */
                 break;
             case PHP_WEAK_NOTIFIER_CALLBACK:
                 /* callback notifier */
-                if (!EG(exception)) {
-                    php_weak_reference_call_notifier(&reference->this_ptr, &reference->notifier);
+                php_weak_reference_call_notifier(&reference->this_ptr, &reference->notifier);
+
+                if (EG(exception)) {
+                    php_weak_store_exceptions(&exceptions, &tmp);
                 }
                 break;
-
             default:
                 break;
         }
@@ -234,6 +249,13 @@ void php_weak_referent_object_dtor_obj(zend_object *object) /* {{{ */
     } ZEND_HASH_FOREACH_END();
 
     zend_hash_index_del(PHP_WEAK_G(referents), referent->handle);
+
+    if (!Z_ISUNDEF(exceptions)) {
+        zval exception;
+        php_weak_create_notifier_exception(&exception, "One or more exceptions thrown during notifiers calling", &exceptions);
+
+        zend_throw_exception_object(&exception);
+    }
 } /* }}} */
 
 void php_weak_globals_referents_ht_dtor(zval *zv) /* {{{ */
@@ -340,6 +362,18 @@ php_weak_reference_t *php_weak_reference_init(zval *this_ptr, zval *referent_zv,
     return reference;
 } /* }}} */
 
+static inline void php_weak_store_exceptions(zval *exceptions, zval *tmp)
+{
+    if (Z_ISUNDEF_P(exceptions)) {
+        array_init(exceptions);
+    }
+
+    ZVAL_OBJ(tmp, EG(exception));
+    Z_ADDREF_P(tmp);
+    add_next_index_zval(exceptions, tmp);
+
+    zend_clear_exception();
+}
 
 static int php_weak_reference_check_notifier(zval *notifier, zval *this) /* {{{ */
 {
@@ -628,10 +662,10 @@ PHP_MINIT_FUNCTION (php_weak_reference) /* {{{ */
     zend_class_entry ce;
 
     INIT_NS_CLASS_ENTRY(ce, PHP_WEAK_NS, "Reference", php_weak_reference_methods);
-    ce.serialize = zend_class_serialize_deny;
-    ce.unserialize = zend_class_unserialize_deny;
     this_ce = zend_register_internal_class(&ce);
     this_ce->create_object = php_weak_reference_ctor;
+    this_ce->serialize = zend_class_serialize_deny;
+    this_ce->unserialize = zend_class_unserialize_deny;
 
     memcpy(&php_weak_reference_object_handlers, zend_get_std_object_handlers(), sizeof(zend_object_handlers));
 
diff --git a/stubs/weak/NotifierException.php b/stubs/weak/NotifierException.php
new file mode 100644
index 0000000..8afedce
--- /dev/null
+++ b/stubs/weak/NotifierException.php
@@ -0,0 +1,23 @@
+<?php
+
+
+namespace Weak;
+
+
+use Exception;
+
+
+class NotifierException extends Exception
+{
+    private $exceptions = [];
+
+    /**
+     * Get exceptions thrown from notifiers
+     *
+     * @return array
+     */
+    public function getExceptions() : array
+    {
+        return $this->exceptions;
+    }
+}
diff --git a/stubs/weak/functions.php b/stubs/weak/functions.php
index 65be179..a813af1 100644
--- a/stubs/weak/functions.php
+++ b/stubs/weak/functions.php
@@ -60,7 +60,7 @@ function weakrefcount(object $value) : int {}
 function weakrefs(object $value) : array {}
 
 /**
- * Get object's weak references
+ * Get object's handle id
  *
  * @param object $value
  *
diff --git a/tests/.testsuite.php b/tests/.testsuite.php
index ebae93b..7d9fef9 100644
--- a/tests/.testsuite.php
+++ b/tests/.testsuite.php
@@ -32,6 +32,21 @@ public function exception_export(\Throwable $e)
         echo get_class($e), ': ', $e->getMessage(), PHP_EOL;
     }
 
+    public function weak_exception_export(\Weak\NotifierException $e)
+    {
+        $this->exception_export($e);
+
+        if ($e->getPrevious()) {
+            echo 'previous: ';
+            $this->exception_export($e->getPrevious());
+        }
+
+        foreach ($e->getExceptions() as $thrown) {
+            echo '    ';
+            $this->exception_export($thrown);
+        }
+    }
+
     public function export($value)
     {
         echo gettype($value), ': ', var_export($value, true), PHP_EOL;
diff --git a/tests/002-notifier-exception-basic.phpt b/tests/002-notifier-exception-basic.phpt
new file mode 100644
index 0000000..518b05d
--- /dev/null
+++ b/tests/002-notifier-exception-basic.phpt
@@ -0,0 +1,37 @@
+--TEST--
+Weak\NotifierException - basic
+--SKIPIF--
+<?php if (!extension_loaded("weak")) print "skip"; ?>
+--FILE--
+<?php
+
+
+try {
+  throw new Weak\NotifierException('Test');
+} catch (Weak\NotifierException $e) {
+  var_dump($e);
+}
+?>
+EOF
+--EXPECTF--
+object(Weak\NotifierException)#1 (8) {
+  ["message":protected]=>
+  string(4) "Test"
+  ["string":"Exception":private]=>
+  string(0) ""
+  ["code":protected]=>
+  int(0)
+  ["file":protected]=>
+  string(%d) "%s"
+  ["line":protected]=>
+  int(5)
+  ["trace":"Exception":private]=>
+  array(0) {
+  }
+  ["previous":"Exception":private]=>
+  NULL
+  ["exceptions":"Weak\NotifierException":private]=>
+  array(0) {
+  }
+}
+EOF
diff --git a/tests/002-reference-clone_extended.phpt b/tests/002-reference-clone_extended.phpt
index 4510703..ecbb108 100644
--- a/tests/002-reference-clone_extended.phpt
+++ b/tests/002-reference-clone_extended.phpt
@@ -20,71 +20,59 @@ $helper = require '.testsuite.php';
 $obj = new \stdClass();
 
 
-$notifier = function (Weak\Reference $ref) use ($helper) {
+$notifier = function (Weak\Reference $ref) {
     echo 'Notified: ';
-    $helper->dump($ref);
+    var_dump($ref);
 };
 
 $wr = new ExtendedReference($obj, $notifier, [42]);
 
-$helper->dump($wr);
+var_dump($wr);
 $helper->line();
 
 $wr2 = clone $wr;
 
-$helper->dump($wr2);
+var_dump($wr2);
 $helper->line();
 
 
 ?>
 EOF
 --EXPECT--
-object(WeakTests\ExtendedReference)#4 (3) refcount(3){
+object(WeakTests\ExtendedReference)#4 (3) {
   ["test":"WeakTests\ExtendedReference":private]=>
-  array(1) refcount(2){
+  array(1) {
     [0]=>
     int(42)
   }
   ["referent":"Weak\Reference":private]=>
-  object(stdClass)#2 (0) refcount(2){
+  object(stdClass)#2 (0) {
   }
   ["notifier":"Weak\Reference":private]=>
-  object(Closure)#3 (2) refcount(3){
-    ["static"]=>
-    array(1) refcount(1){
-      ["helper"]=>
-      object(Testsuite)#1 (0) refcount(4){
-      }
-    }
+  object(Closure)#3 (1) {
     ["parameter"]=>
-    array(1) refcount(1){
+    array(1) {
       ["$ref"]=>
-      string(10) "<required>" refcount(1)
+      string(10) "<required>"
     }
   }
 }
 
-object(WeakTests\ExtendedReference)#5 (3) refcount(3){
+object(WeakTests\ExtendedReference)#5 (3) {
   ["test":"WeakTests\ExtendedReference":private]=>
-  array(1) refcount(3){
+  array(1) {
     [0]=>
     int(42)
   }
   ["referent":"Weak\Reference":private]=>
-  object(stdClass)#2 (0) refcount(2){
+  object(stdClass)#2 (0) {
   }
   ["notifier":"Weak\Reference":private]=>
-  object(Closure)#3 (2) refcount(4){
-    ["static"]=>
-    array(1) refcount(1){
-      ["helper"]=>
-      object(Testsuite)#1 (0) refcount(4){
-      }
-    }
+  object(Closure)#3 (1) {
     ["parameter"]=>
-    array(1) refcount(1){
+    array(1) {
       ["$ref"]=>
-      string(10) "<required>" refcount(1)
+      string(10) "<required>"
     }
   }
 }
diff --git a/tests/002-reference-dump_extended.phpt b/tests/002-reference-dump_extended.phpt
index b7a90e4..a79bacb 100644
--- a/tests/002-reference-dump_extended.phpt
+++ b/tests/002-reference-dump_extended.phpt
@@ -16,49 +16,49 @@ $obj = new stdClass();
 
 $wr = new ExtendedReference($obj, function (Weak\Reference $reference) {}, [42]);
 
-$helper->dump($wr);
+var_dump($wr);
 $helper->line();
 
 $obj = null;
 
-$helper->dump($wr);
+var_dump($wr);
 $helper->line();
 ?>
 EOF
 --EXPECT--
-object(WeakTests\ExtendedReference)#3 (3) refcount(3){
+object(WeakTests\ExtendedReference)#3 (3) {
   ["test":"WeakTests\ExtendedReference":private]=>
-  array(1) refcount(2){
+  array(1) {
     [0]=>
     int(42)
   }
   ["referent":"Weak\Reference":private]=>
-  object(stdClass)#2 (0) refcount(2){
+  object(stdClass)#2 (0) {
   }
   ["notifier":"Weak\Reference":private]=>
-  object(Closure)#4 (1) refcount(2){
+  object(Closure)#4 (1) {
     ["parameter"]=>
-    array(1) refcount(1){
+    array(1) {
       ["$reference"]=>
-      string(10) "<required>" refcount(1)
+      string(10) "<required>"
     }
   }
 }
 
-object(WeakTests\ExtendedReference)#3 (3) refcount(3){
+object(WeakTests\ExtendedReference)#3 (3) {
   ["test":"WeakTests\ExtendedReference":private]=>
-  array(1) refcount(2){
+  array(1) {
     [0]=>
     int(42)
   }
   ["referent":"Weak\Reference":private]=>
   NULL
   ["notifier":"Weak\Reference":private]=>
-  object(Closure)#4 (1) refcount(2){
+  object(Closure)#4 (1) {
     ["parameter"]=>
-    array(1) refcount(1){
+    array(1) {
       ["$reference"]=>
-      string(10) "<required>" refcount(1)
+      string(10) "<required>"
     }
   }
 }
diff --git a/tests/002-reference-exception_in_callback.phpt b/tests/002-reference-exception_in_callback.phpt
index 617dd2f..46d7fb6 100644
--- a/tests/002-reference-exception_in_callback.phpt
+++ b/tests/002-reference-exception_in_callback.phpt
@@ -21,18 +21,14 @@ $wr = new Weak\Reference($obj, $callback);
 
 try {
     $obj = null;
-} catch(\Exception $e) {
-    $helper->exception_export($e);
-
-    if ($e->getPrevious()) {
-        echo 'previous:';
-        $helper->exception_export($e->getPrevious());
-    }
+} catch(\Weak\NotifierException $e) {
+    $helper->weak_exception_export($e);
 }
 
 ?>
 EOF
 --EXPECT--
 WeakTests\TrackingDtor's destructor called
-Exception: Test exception from callback
+Weak\NotifierException: One or more exceptions thrown during notifiers calling
+    Exception: Test exception from callback
 EOF
diff --git a/tests/002-reference-exception_in_multiple_callbacks.phpt b/tests/002-reference-exception_in_multiple_callbacks.phpt
index e3a2cb9..769228b 100644
--- a/tests/002-reference-exception_in_multiple_callbacks.phpt
+++ b/tests/002-reference-exception_in_multiple_callbacks.phpt
@@ -15,6 +15,7 @@ $obj = new \WeakTests\TrackingDtor(0);
 function callback_throws($id)
 {
     return function (Weak\Reference $reference) use ($id) {
+        echo 'Callback #' . $id, ' called', PHP_EOL;
         throw new \Exception('Test exception from callback #' . $id);
     };
 }
@@ -22,34 +23,38 @@ function callback_throws($id)
 function callback_ok($id)
 {
     return function (Weak\Reference $reference) use ($id) {
-
         echo 'Callback #' . $id, ' called', PHP_EOL;
     };
 }
 
 
-$wr3 = new Weak\Reference($obj, callback_ok(3));
-$wr2 = new Weak\Reference($obj, callback_throws(2));
+$wr5 = new Weak\Reference($obj, callback_ok(5));
+$wr4 = new Weak\Reference($obj, callback_ok(4));
+$wr3 = new Weak\Reference($obj, callback_throws(3));
+$wr2 = new Weak\Reference($obj, callback_ok(2));
 $wr1 = new Weak\Reference($obj, callback_throws(1));
 $wr0 = new Weak\Reference($obj, callback_ok(0));
 
 try {
     $obj = null;
-} catch(\Exception $e) {
-    $helper->exception_export($e);
-
-    if ($e->getPrevious()) {
-        echo 'previous:';
-        $helper->exception_export($e->getPrevious());
-    }
+} catch(\Weak\NotifierException $e) {
+    $helper->weak_exception_export($e);
 }
 
+
 $helper->line();
 ?>
 EOF
 --EXPECT--
 WeakTests\TrackingDtor's destructor called
 Callback #0 called
-Exception: Test exception from callback #1
+Callback #1 called
+Callback #2 called
+Callback #3 called
+Callback #4 called
+Callback #5 called
+Weak\NotifierException: One or more exceptions thrown during notifiers calling
+    Exception: Test exception from callback #1
+    Exception: Test exception from callback #3
 
 EOF
diff --git a/tests/002-reference-exception_in_orig_dtor.phpt b/tests/002-reference-exception_in_orig_dtor.phpt
index d924c35..093305b 100644
--- a/tests/002-reference-exception_in_orig_dtor.phpt
+++ b/tests/002-reference-exception_in_orig_dtor.phpt
@@ -11,6 +11,8 @@ $helper = require '.testsuite.php';
 class BadDtor {
     function __destruct()
     {
+        echo 'Dtor called', PHP_EOL;
+
         throw new Exception('Test exception from dtor');
     }
 }
@@ -26,17 +28,15 @@ $wr = new Weak\Reference($obj, $callback);
 
 try {
     $obj = null;
-} catch(\Exception $e) {
-    $helper->exception_export($e);
-
-    if ($e->getPrevious()) {
-        echo 'previous:';
-        $helper->exception_export($e->getPrevious());
-    }
+} catch(\Weak\NotifierException $e) {
+    $helper->weak_exception_export($e);
 }
 
 ?>
 EOF
 --EXPECT--
-Exception: Test exception from dtor
+Dtor called
+Weak callback called
+Weak\NotifierException: One or more exceptions thrown during notifiers calling
+    Exception: Test exception from dtor
 EOF
diff --git a/tests/002-reference-exception_in_orig_dtor_and_callback.phpt b/tests/002-reference-exception_in_orig_dtor_and_callback.phpt
index bf64bc5..639e175 100644
--- a/tests/002-reference-exception_in_orig_dtor_and_callback.phpt
+++ b/tests/002-reference-exception_in_orig_dtor_and_callback.phpt
@@ -11,6 +11,8 @@ $helper = require '.testsuite.php';
 class BadDtor {
     function __destruct()
     {
+        echo 'Dtor called', PHP_EOL;
+
         throw new Exception('Test exception from dtor');
     }
 }
@@ -18,6 +20,8 @@ class BadDtor {
 $obj = new BadDtor();
 
 $callback = function (Weak\Reference $reference) {
+    echo 'Callback called', PHP_EOL;
+
     throw new \Exception('Test exception from callback');
 };
 
@@ -27,17 +31,16 @@ $wr = new Weak\Reference($obj, $callback);
 
 try {
     $obj = null;
-} catch(\Exception $e) {
-    $helper->exception_export($e);
-
-    if ($e->getPrevious()) {
-        echo 'previous:';
-        $helper->exception_export($e->getPrevious());
-    }
+} catch(\Weak\NotifierException $e) {
+    $helper->weak_exception_export($e);
 }
 
 ?>
 EOF
 --EXPECT--
-Exception: Test exception from dtor
+Dtor called
+Callback called
+Weak\NotifierException: One or more exceptions thrown during notifiers calling
+    Exception: Test exception from dtor
+    Exception: Test exception from callback
 EOF
diff --git a/tests/002-reference-notifier_array.phpt b/tests/002-reference-notifier_array.phpt
index d691b94..d8bbde1 100644
--- a/tests/002-reference-notifier_array.phpt
+++ b/tests/002-reference-notifier_array.phpt
@@ -14,69 +14,43 @@ $notifier = [];
 $wr = new Weak\Reference($obj, $notifier);
 
 
-$helper->dump($notifier);
+var_dump($notifier);
 
 $obj = null;
 
-$helper->dump($notifier);
+var_dump($notifier);
 
 $wr = null;
 
-$helper->dump($notifier);
+var_dump($notifier);
 
 $helper->line();
 ?>
 EOF
 --EXPECT--
-array(0) refcount(4){
+array(0) {
 }
-array(1) refcount(4){
+array(1) {
   [0]=>
-  object(Weak\Reference)#3 (2) refcount(2){
+  object(Weak\Reference)#3 (2) {
     ["referent":"Weak\Reference":private]=>
     NULL
     ["notifier":"Weak\Reference":private]=>
-    array(1) refcount(5){
+    array(1) {
       [0]=>
-      object(Weak\Reference)#3 (2) refcount(2){
-        ["referent":"Weak\Reference":private]=>
-        NULL
-        ["notifier":"Weak\Reference":private]=>
-        array(1) refcount(6){
-          [0]=>
-          object(Weak\Reference)#3 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-        }
-      }
+      *RECURSION*
     }
   }
 }
-array(1) refcount(4){
+array(1) {
   [0]=>
-  object(Weak\Reference)#3 (2) refcount(1){
+  object(Weak\Reference)#3 (2) {
     ["referent":"Weak\Reference":private]=>
     NULL
     ["notifier":"Weak\Reference":private]=>
-    array(1) refcount(5){
+    array(1) {
       [0]=>
-      object(Weak\Reference)#3 (2) refcount(1){
-        ["referent":"Weak\Reference":private]=>
-        NULL
-        ["notifier":"Weak\Reference":private]=>
-        array(1) refcount(6){
-          [0]=>
-          object(Weak\Reference)#3 (2) refcount(1){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-        }
-      }
+      *RECURSION*
     }
   }
 }
diff --git a/tests/002-reference-notifier_array_clone.phpt b/tests/002-reference-notifier_array_clone.phpt
index 6359f77..8749c2e 100644
--- a/tests/002-reference-notifier_array_clone.phpt
+++ b/tests/002-reference-notifier_array_clone.phpt
@@ -15,231 +15,91 @@ $wr = new Weak\Reference($obj, $notifier);
 
 $wr2 = clone $wr;
 
-$helper->dump($notifier);
+var_dump($notifier);
 
 $obj = null;
 
-$helper->dump($notifier);
+var_dump($notifier);
 
 $wr = null;
 
-$helper->dump($notifier);
+var_dump($notifier);
 
 $helper->line();
 ?>
 EOF
 --EXPECT--
-array(0) refcount(5){
+array(0) {
 }
-array(2) refcount(5){
+array(2) {
   [0]=>
-  object(Weak\Reference)#4 (2) refcount(2){
+  object(Weak\Reference)#4 (2) {
     ["referent":"Weak\Reference":private]=>
     NULL
     ["notifier":"Weak\Reference":private]=>
-    array(2) refcount(6){
+    array(2) {
       [0]=>
-      object(Weak\Reference)#4 (2) refcount(2){
-        ["referent":"Weak\Reference":private]=>
-        NULL
-        ["notifier":"Weak\Reference":private]=>
-        array(2) refcount(7){
-          [0]=>
-          object(Weak\Reference)#4 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-          [1]=>
-          object(Weak\Reference)#3 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-        }
-      }
+      *RECURSION*
       [1]=>
-      object(Weak\Reference)#3 (2) refcount(2){
+      object(Weak\Reference)#3 (2) {
         ["referent":"Weak\Reference":private]=>
         NULL
         ["notifier":"Weak\Reference":private]=>
-        array(2) refcount(7){
-          [0]=>
-          object(Weak\Reference)#4 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-          [1]=>
-          object(Weak\Reference)#3 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-        }
+        *RECURSION*
       }
     }
   }
   [1]=>
-  object(Weak\Reference)#3 (2) refcount(2){
+  object(Weak\Reference)#3 (2) {
     ["referent":"Weak\Reference":private]=>
     NULL
     ["notifier":"Weak\Reference":private]=>
-    array(2) refcount(6){
+    array(2) {
       [0]=>
-      object(Weak\Reference)#4 (2) refcount(2){
+      object(Weak\Reference)#4 (2) {
         ["referent":"Weak\Reference":private]=>
         NULL
         ["notifier":"Weak\Reference":private]=>
-        array(2) refcount(7){
-          [0]=>
-          object(Weak\Reference)#4 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-          [1]=>
-          object(Weak\Reference)#3 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-        }
+        *RECURSION*
       }
       [1]=>
-      object(Weak\Reference)#3 (2) refcount(2){
-        ["referent":"Weak\Reference":private]=>
-        NULL
-        ["notifier":"Weak\Reference":private]=>
-        array(2) refcount(7){
-          [0]=>
-          object(Weak\Reference)#4 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-          [1]=>
-          object(Weak\Reference)#3 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-        }
-      }
+      *RECURSION*
     }
   }
 }
-array(2) refcount(5){
+array(2) {
   [0]=>
-  object(Weak\Reference)#4 (2) refcount(2){
+  object(Weak\Reference)#4 (2) {
     ["referent":"Weak\Reference":private]=>
     NULL
     ["notifier":"Weak\Reference":private]=>
-    array(2) refcount(6){
+    array(2) {
       [0]=>
-      object(Weak\Reference)#4 (2) refcount(2){
-        ["referent":"Weak\Reference":private]=>
-        NULL
-        ["notifier":"Weak\Reference":private]=>
-        array(2) refcount(7){
-          [0]=>
-          object(Weak\Reference)#4 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-          [1]=>
-          object(Weak\Reference)#3 (2) refcount(1){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-        }
-      }
+      *RECURSION*
       [1]=>
-      object(Weak\Reference)#3 (2) refcount(1){
+      object(Weak\Reference)#3 (2) {
         ["referent":"Weak\Reference":private]=>
         NULL
         ["notifier":"Weak\Reference":private]=>
-        array(2) refcount(7){
-          [0]=>
-          object(Weak\Reference)#4 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-          [1]=>
-          object(Weak\Reference)#3 (2) refcount(1){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-        }
+        *RECURSION*
       }
     }
   }
   [1]=>
-  object(Weak\Reference)#3 (2) refcount(1){
+  object(Weak\Reference)#3 (2) {
     ["referent":"Weak\Reference":private]=>
     NULL
     ["notifier":"Weak\Reference":private]=>
-    array(2) refcount(6){
+    array(2) {
       [0]=>
-      object(Weak\Reference)#4 (2) refcount(2){
+      object(Weak\Reference)#4 (2) {
         ["referent":"Weak\Reference":private]=>
         NULL
         ["notifier":"Weak\Reference":private]=>
-        array(2) refcount(7){
-          [0]=>
-          object(Weak\Reference)#4 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-          [1]=>
-          object(Weak\Reference)#3 (2) refcount(1){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-        }
+        *RECURSION*
       }
       [1]=>
-      object(Weak\Reference)#3 (2) refcount(1){
-        ["referent":"Weak\Reference":private]=>
-        NULL
-        ["notifier":"Weak\Reference":private]=>
-        array(2) refcount(7){
-          [0]=>
-          object(Weak\Reference)#4 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-          [1]=>
-          object(Weak\Reference)#3 (2) refcount(1){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-        }
-      }
+      *RECURSION*
     }
   }
 }
diff --git a/tests/002-reference-notifier_array_reliability.phpt b/tests/002-reference-notifier_array_reliability.phpt
index 292df29..727031e 100644
--- a/tests/002-reference-notifier_array_reliability.phpt
+++ b/tests/002-reference-notifier_array_reliability.phpt
@@ -20,7 +20,7 @@ $wr2 = new Weak\Reference($obj, function () {
 $wr2 = new Weak\Reference($obj, $notifier);
 
 
-$helper->dump($notifier);
+var_dump($notifier);
 
 try {
     $obj = null;
@@ -28,227 +28,87 @@ try {
     $helper->exception_export($e);
 }
 
-$helper->dump($notifier);
+var_dump($notifier);
 
 $wr1 = null;
 
-$helper->dump($notifier);
+var_dump($notifier);
 
 $helper->line();
 ?>
 EOF
 --EXPECT--
-array(0) refcount(5){
+array(0) {
 }
-array(2) refcount(5){
+array(2) {
   [0]=>
-  object(Weak\Reference)#6 (2) refcount(2){
+  object(Weak\Reference)#6 (2) {
     ["referent":"Weak\Reference":private]=>
     NULL
     ["notifier":"Weak\Reference":private]=>
-    array(2) refcount(6){
+    array(2) {
       [0]=>
-      object(Weak\Reference)#6 (2) refcount(2){
-        ["referent":"Weak\Reference":private]=>
-        NULL
-        ["notifier":"Weak\Reference":private]=>
-        array(2) refcount(7){
-          [0]=>
-          object(Weak\Reference)#6 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-          [1]=>
-          object(Weak\Reference)#3 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-        }
-      }
+      *RECURSION*
       [1]=>
-      object(Weak\Reference)#3 (2) refcount(2){
+      object(Weak\Reference)#3 (2) {
         ["referent":"Weak\Reference":private]=>
         NULL
         ["notifier":"Weak\Reference":private]=>
-        array(2) refcount(7){
-          [0]=>
-          object(Weak\Reference)#6 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-          [1]=>
-          object(Weak\Reference)#3 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-        }
+        *RECURSION*
       }
     }
   }
   [1]=>
-  object(Weak\Reference)#3 (2) refcount(2){
+  object(Weak\Reference)#3 (2) {
     ["referent":"Weak\Reference":private]=>
     NULL
     ["notifier":"Weak\Reference":private]=>
-    array(2) refcount(6){
+    array(2) {
       [0]=>
-      object(Weak\Reference)#6 (2) refcount(2){
+      object(Weak\Reference)#6 (2) {
         ["referent":"Weak\Reference":private]=>
         NULL
         ["notifier":"Weak\Reference":private]=>
-        array(2) refcount(7){
-          [0]=>
-          object(Weak\Reference)#6 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-          [1]=>
-          object(Weak\Reference)#3 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-        }
+        *RECURSION*
       }
       [1]=>
-      object(Weak\Reference)#3 (2) refcount(2){
-        ["referent":"Weak\Reference":private]=>
-        NULL
-        ["notifier":"Weak\Reference":private]=>
-        array(2) refcount(7){
-          [0]=>
-          object(Weak\Reference)#6 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-          [1]=>
-          object(Weak\Reference)#3 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-        }
-      }
+      *RECURSION*
     }
   }
 }
-array(2) refcount(5){
+array(2) {
   [0]=>
-  object(Weak\Reference)#6 (2) refcount(2){
+  object(Weak\Reference)#6 (2) {
     ["referent":"Weak\Reference":private]=>
     NULL
     ["notifier":"Weak\Reference":private]=>
-    array(2) refcount(6){
+    array(2) {
       [0]=>
-      object(Weak\Reference)#6 (2) refcount(2){
-        ["referent":"Weak\Reference":private]=>
-        NULL
-        ["notifier":"Weak\Reference":private]=>
-        array(2) refcount(7){
-          [0]=>
-          object(Weak\Reference)#6 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-          [1]=>
-          object(Weak\Reference)#3 (2) refcount(1){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-        }
-      }
+      *RECURSION*
       [1]=>
-      object(Weak\Reference)#3 (2) refcount(1){
+      object(Weak\Reference)#3 (2) {
         ["referent":"Weak\Reference":private]=>
         NULL
         ["notifier":"Weak\Reference":private]=>
-        array(2) refcount(7){
-          [0]=>
-          object(Weak\Reference)#6 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-          [1]=>
-          object(Weak\Reference)#3 (2) refcount(1){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-        }
+        *RECURSION*
       }
     }
   }
   [1]=>
-  object(Weak\Reference)#3 (2) refcount(1){
+  object(Weak\Reference)#3 (2) {
     ["referent":"Weak\Reference":private]=>
     NULL
     ["notifier":"Weak\Reference":private]=>
-    array(2) refcount(6){
+    array(2) {
       [0]=>
-      object(Weak\Reference)#6 (2) refcount(2){
+      object(Weak\Reference)#6 (2) {
         ["referent":"Weak\Reference":private]=>
         NULL
         ["notifier":"Weak\Reference":private]=>
-        array(2) refcount(7){
-          [0]=>
-          object(Weak\Reference)#6 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-          [1]=>
-          object(Weak\Reference)#3 (2) refcount(1){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-        }
+        *RECURSION*
       }
       [1]=>
-      object(Weak\Reference)#3 (2) refcount(1){
-        ["referent":"Weak\Reference":private]=>
-        NULL
-        ["notifier":"Weak\Reference":private]=>
-        array(2) refcount(7){
-          [0]=>
-          object(Weak\Reference)#6 (2) refcount(2){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-          [1]=>
-          object(Weak\Reference)#3 (2) refcount(1){
-            ["referent":"Weak\Reference":private]=>
-            NULL
-            ["notifier":"Weak\Reference":private]=>
-            *RECURSION*
-          }
-        }
-      }
+      *RECURSION*
     }
   }
 }
diff --git a/tests/002-reference-notifier_not_called_after_wr_dies_first.phpt b/tests/002-reference-notifier_not_called_after_wr_dies_first.phpt
index 9023924..13f4f58 100644
--- a/tests/002-reference-notifier_not_called_after_wr_dies_first.phpt
+++ b/tests/002-reference-notifier_not_called_after_wr_dies_first.phpt
@@ -25,8 +25,8 @@ $wr = new Weak\Reference($obj, $callback);
 
 try {
     $obj = null;
-} catch(Exception $e) {
-    $helper->exception_export($e);
+} catch(\Weak\NotifierException $e) {
+    $helper->weak_exception_export($e);
     $helper->line();
 }
 
@@ -37,7 +37,9 @@ $helper->line();
 ?>
 EOF
 --EXPECT--
-Exception: Destructor throws exception
+Weak notifier called
+Weak\NotifierException: One or more exceptions thrown during notifiers calling
+    Exception: Destructor throws exception
 
 Referent object dead: ok
 Referent object invalid: ok
diff --git a/weak.c b/weak.c
index beef3eb..42c74f7 100644
--- a/weak.c
+++ b/weak.c
@@ -18,6 +18,7 @@
 
 #include "php_weak_functions.h"
 #include "php_weak_reference.h"
+#include "php_weak_notifier_exception.h"
 #include "php_weak.h"
 
 #include "ext/standard/info.h"
@@ -29,6 +30,7 @@ static int le_weak;
 
 PHP_MINIT_FUNCTION(weak) /* {{{ */
 {
+    PHP_MINIT(php_weak_notifier_exception)(INIT_FUNC_ARGS_PASSTHRU);
     PHP_MINIT(php_weak_reference)(INIT_FUNC_ARGS_PASSTHRU);
 
     return SUCCESS;