diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4f83f34b..147c860b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -29,10 +29,16 @@ link_directories(${PHP_LDFLAGS})
 include_directories(include)
 include_directories(BEFORE ${PHP_INCLUDE_DIR} ${PHP_INCLUDE_DIR}/Zend ${PHP_INCLUDE_DIR}/main ${PHP_INCLUDE_DIR}/TSRM)
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+
+IF (APPLE)
+    SET(CMAKE_SHARED_LINKER_FLAGS  "${CMAKE_SHARED_LINKER_FLAGS} -undefined dynamic_lookup")
+    message(${CMAKE_SHARED_LINKER_FLAGS})
+ENDIF ()
+
 #libary
 add_library(phpx SHARED ${DIR_SRCS})
 
 #install
 INSTALL(CODE "MESSAGE(\"Are you run command using root user?\")")
 INSTALL(TARGETS phpx LIBRARY DESTINATION lib ARCHIVE DESTINATION lib)
-INSTALL(FILES ${HEADER_FILES} DESTINATION include)
\ No newline at end of file
+INSTALL(FILES ${HEADER_FILES} DESTINATION include)
diff --git a/include/phpx.h b/include/phpx.h
index 662b246a..19f73061 100644
--- a/include/phpx.h
+++ b/include/phpx.h
@@ -332,6 +332,50 @@ class Variant
         }
         return static_cast<T *>(_ptr);
     }
+    bool operator ==(Variant &v)
+    {
+        return equals(v);
+    }
+    bool operator ==(bool v)
+    {
+        Variant _tmp(v);
+        return equals(_tmp);
+    }
+    bool operator ==(int v)
+    {
+        Variant _tmp(v);
+        return equals(_tmp);
+    }
+    bool operator ==(long v)
+    {
+        Variant _tmp(v);
+        return equals(_tmp);
+    }
+    bool operator ==(float v)
+    {
+        Variant _tmp(v);
+        return equals(_tmp);
+    }
+    bool operator ==(double v)
+    {
+        Variant _tmp(v);
+        return equals(_tmp);
+    }
+    bool operator ==(nullptr_t v)
+    {
+        Variant _tmp(v);
+        return equals(_tmp);
+    }
+    bool operator ==(string &v)
+    {
+        Variant _tmp(v);
+        return equals(_tmp);
+    }
+    bool operator ==(const char *v)
+    {
+        Variant _tmp(v);
+        return equals(_tmp);
+    }
     bool equals(Variant &v, bool strict = false)
     {
         if (strict)
@@ -455,6 +499,10 @@ class String
         }
         return memcmp(str.c_str(), value->val, value->len) == 0;
     }
+    inline bool operator ==(String &v)
+    {
+        return equals(v);
+    }
     bool equals(String &str, bool ci = false)
     {
         if (str.length() != value->len)
@@ -1387,11 +1435,11 @@ typedef void (*resource_dtor)(zend_resource *);
 typedef void (*method_t)(Object &, Args &, Variant &retval);
 
 struct strCmp
-{  
-    bool operator()( const char * s1, const char * s2 ) const  
-    {  
-        return strcmp( s1, s2 ) < 0;  
-    }  
+{
+    bool operator()( const char * s1, const char * s2 ) const
+    {
+        return strcmp( s1, s2 ) < 0;
+    }
 };
 
 extern map<const char *, map<const char *, method_t, strCmp>, strCmp> method_map;