diff --git a/ext/soap/php_encoding.c b/ext/soap/php_encoding.c
index 5e93b8a..fd9e367 100644
--- a/ext/soap/php_encoding.c
+++ b/ext/soap/php_encoding.c
@@ -3649,18 +3649,21 @@ static encodePtr get_array_type(xmlNodePtr node, zval *array, smart_str *type TS
 		    Z_OBJCE_PP(tmp) == soap_var_class_entry) {
 			zval **ztype;
 
-			if (zend_hash_find(Z_OBJPROP_PP(tmp), "enc_type", sizeof("enc_type"), (void **)&ztype) == FAILURE) {
+			if (zend_hash_find(Z_OBJPROP_PP(tmp), "enc_type", sizeof("enc_type"), (void **)&ztype) == FAILURE ||
+			    Z_TYPE_PP(ztype) != IS_LONG) {
 				soap_error0(E_ERROR,  "Encoding: SoapVar has no 'enc_type' property");
 			}
 			cur_type = Z_LVAL_PP(ztype);
 
-			if (zend_hash_find(Z_OBJPROP_PP(tmp), "enc_stype", sizeof("enc_stype"), (void **)&ztype) == SUCCESS) {
+			if (zend_hash_find(Z_OBJPROP_PP(tmp), "enc_stype", sizeof("enc_stype"), (void **)&ztype) == SUCCESS &&
+			    Z_TYPE_PP(ztype) == IS_STRING) {
 				cur_stype = Z_STRVAL_PP(ztype);
 			} else {
 				cur_stype = NULL;
 			}
 
-			if (zend_hash_find(Z_OBJPROP_PP(tmp), "enc_ns", sizeof("enc_ns"), (void **)&ztype) == SUCCESS) {
+			if (zend_hash_find(Z_OBJPROP_PP(tmp), "enc_ns", sizeof("enc_ns"), (void **)&ztype) == SUCCESS &&
+			    Z_TYPE_PP(ztype) == IS_STRING) {
 				cur_ns = Z_STRVAL_PP(ztype);
 			} else {
 				cur_ns = NULL;
diff --git a/ext/soap/php_http.c b/ext/soap/php_http.c
index 9e74a7c..8c5082c 100644
--- a/ext/soap/php_http.c
+++ b/ext/soap/php_http.c
@@ -36,14 +36,16 @@ int proxy_authentication(zval* this_ptr, smart_str* soap_headers TSRMLS_DC)
 {
 	zval **login, **password;
 
-	if (zend_hash_find(Z_OBJPROP_P(this_ptr), "_proxy_login", sizeof("_proxy_login"), (void **)&login) == SUCCESS) {
+	if (zend_hash_find(Z_OBJPROP_P(this_ptr), "_proxy_login", sizeof("_proxy_login"), (void **)&login) == SUCCESS &&
+	    Z_TYPE_PP(login) == IS_STRING) {
 		unsigned char* buf;
 		int len;
 		smart_str auth = {0};
 
 		smart_str_appendl(&auth, Z_STRVAL_PP(login), Z_STRLEN_PP(login));
 		smart_str_appendc(&auth, ':');
-		if (zend_hash_find(Z_OBJPROP_P(this_ptr), "_proxy_password", sizeof("_proxy_password"), (void **)&password) == SUCCESS) {
+		if (zend_hash_find(Z_OBJPROP_P(this_ptr), "_proxy_password", sizeof("_proxy_password"), (void **)&password) == SUCCESS &&
+		    Z_TYPE_PP(password) == IS_STRING) {
 			smart_str_appendl(&auth, Z_STRVAL_PP(password), Z_STRLEN_PP(password));
 		}
 		smart_str_0(&auth);
@@ -64,14 +66,16 @@ int basic_authentication(zval* this_ptr, smart_str* soap_headers TSRMLS_DC)
 	zval **login, **password;
 
 	if (zend_hash_find(Z_OBJPROP_P(this_ptr), "_login", sizeof("_login"), (void **)&login) == SUCCESS &&
-			!zend_hash_exists(Z_OBJPROP_P(this_ptr), "_digest", sizeof("_digest"))) {
+	    Z_TYPE_PP(login) == IS_STRING &&
+	    !zend_hash_exists(Z_OBJPROP_P(this_ptr), "_digest", sizeof("_digest"))) {
 		unsigned char* buf;
 		int len;
 		smart_str auth = {0};
 
 		smart_str_appendl(&auth, Z_STRVAL_PP(login), Z_STRLEN_PP(login));
 		smart_str_appendc(&auth, ':');
-		if (zend_hash_find(Z_OBJPROP_P(this_ptr), "_password", sizeof("_password"), (void **)&password) == SUCCESS) {
+		if (zend_hash_find(Z_OBJPROP_P(this_ptr), "_password", sizeof("_password"), (void **)&password) == SUCCESS &&
+		    Z_TYPE_PP(password) == IS_STRING) {
 			smart_str_appendl(&auth, Z_STRVAL_PP(password), Z_STRLEN_PP(password));
 		}
 		smart_str_0(&auth);
@@ -509,6 +513,7 @@ try_again:
 		}
 		if (!http_1_1 ||
 			(zend_hash_find(Z_OBJPROP_P(this_ptr), "_keep_alive", sizeof("_keep_alive"), (void **)&tmp) == SUCCESS &&
+			 (Z_TYPE_PP(tmp) == IS_BOOL || Z_TYPE_PP(tmp) == IS_LONG) &&
 			 Z_LVAL_PP(tmp) == 0)) {
 			smart_str_append_const(&soap_headers, "\r\n"
 				"Connection: close\r\n");
@@ -742,7 +747,8 @@ try_again:
 		}
 
 		/* Send cookies along with request */
-		if (zend_hash_find(Z_OBJPROP_P(this_ptr), "_cookies", sizeof("_cookies"), (void **)&cookies) == SUCCESS) {
+		if (zend_hash_find(Z_OBJPROP_P(this_ptr), "_cookies", sizeof("_cookies"), (void **)&cookies) == SUCCESS &&
+		    Z_TYPE_PP(cookies) == IS_ARRAY) {
 			zval **data;
 			char *key;
 			int i, n;
@@ -785,7 +791,7 @@ try_again:
 		smart_str_append_const(&soap_headers, "\r\n");
 		smart_str_0(&soap_headers);
 		if (zend_hash_find(Z_OBJPROP_P(this_ptr), "trace", sizeof("trace"), (void **) &trace) == SUCCESS &&
-		    Z_LVAL_PP(trace) > 0) {
+		    (Z_TYPE_PP(trace) == IS_BOOL || Z_TYPE_PP(trace) == IS_LONG) && Z_LVAL_PP(trace) != 0) {
 			add_property_stringl(this_ptr, "__last_request_headers", soap_headers.c, soap_headers.len, 1);
 		}
 		smart_str_appendl(&soap_headers, request, request_size);
@@ -830,7 +836,7 @@ try_again:
 		}
 
 		if (zend_hash_find(Z_OBJPROP_P(this_ptr), "trace", sizeof("trace"), (void **) &trace) == SUCCESS &&
-		    Z_LVAL_PP(trace) > 0) {
+		    (Z_TYPE_PP(trace) == IS_BOOL || Z_TYPE_PP(trace) == IS_LONG) && Z_LVAL_PP(trace) != 0) {
 			add_property_stringl(this_ptr, "__last_response_headers", http_headers, http_header_size, 1);
 		}
 
@@ -879,7 +885,8 @@ try_again:
 		char *eqpos, *sempos;
 		zval **cookies;
 
-		if (zend_hash_find(Z_OBJPROP_P(this_ptr), "_cookies", sizeof("_cookies"), (void **)&cookies) == FAILURE) {
+		if (zend_hash_find(Z_OBJPROP_P(this_ptr), "_cookies", sizeof("_cookies"), (void **)&cookies) == FAILURE ||
+		    Z_TYPE_PP(cookies) != IS_ARRAY) {
 			zval *tmp_cookies;
 			MAKE_STD_ZVAL(tmp_cookies);
 			array_init(tmp_cookies);
diff --git a/ext/soap/soap.c b/ext/soap/soap.c
index 8790605..9ec6347 100644
--- a/ext/soap/soap.c
+++ b/ext/soap/soap.c
@@ -2554,7 +2554,7 @@ static int do_request(zval *this_ptr, xmlDoc *request, char *location, char *act
 	}
 
 	if (zend_hash_find(Z_OBJPROP_P(this_ptr), "trace", sizeof("trace"), (void **) &trace) == SUCCESS &&
-	    Z_LVAL_PP(trace) > 0) {
+	    (Z_LVAL_PP(trace) == IS_BOOL || Z_LVAL_PP(trace) == IS_LONG) && Z_LVAL_PP(trace) != 0) {
 		add_property_stringl(this_ptr, "__last_request", buf, buf_size, 1);
 	}
 
@@ -2594,7 +2594,7 @@ static int do_request(zval *this_ptr, xmlDoc *request, char *location, char *act
 		}
 		ret = FALSE;
 	} else if (zend_hash_find(Z_OBJPROP_P(this_ptr), "trace", sizeof("trace"), (void **) &trace) == SUCCESS &&
-	    Z_LVAL_PP(trace) > 0) {
+	           (Z_LVAL_PP(trace) == IS_BOOL || Z_LVAL_PP(trace) == IS_LONG) && Z_LVAL_PP(trace) != 0) {
 		add_property_stringl(this_ptr, "__last_response", Z_STRVAL_P(response), Z_STRLEN_P(response), 1);
 	}
 	xmlFree(buf);
@@ -2633,13 +2633,13 @@ static void do_soap_call(zval* this_ptr,
 
 	SOAP_CLIENT_BEGIN_CODE();
 
-	if (zend_hash_find(Z_OBJPROP_P(this_ptr), "trace", sizeof("trace"), (void **) &trace) == SUCCESS
-		&& Z_LVAL_PP(trace) > 0) {
+	if (zend_hash_find(Z_OBJPROP_P(this_ptr), "trace", sizeof("trace"), (void **) &trace) == SUCCESS &&
+	    (Z_LVAL_PP(trace) == IS_BOOL || Z_LVAL_PP(trace) == IS_LONG) && Z_LVAL_PP(trace) != 0) {
 		zend_hash_del(Z_OBJPROP_P(this_ptr), "__last_request", sizeof("__last_request"));
 		zend_hash_del(Z_OBJPROP_P(this_ptr), "__last_response", sizeof("__last_response"));
 	}
-	if (zend_hash_find(Z_OBJPROP_P(this_ptr), "_soap_version", sizeof("_soap_version"), (void **) &tmp) == SUCCESS
-		&& Z_LVAL_PP(tmp) == SOAP_1_2) {
+	if (zend_hash_find(Z_OBJPROP_P(this_ptr), "_soap_version", sizeof("_soap_version"), (void **) &tmp) == SUCCESS &&
+		Z_TYPE_PP(tmp) == IS_LONG && Z_LVAL_PP(tmp) == SOAP_1_2) {
 		soap_version = SOAP_1_2;
 	} else {
 		soap_version = SOAP_1_1;
@@ -2735,7 +2735,7 @@ static void do_soap_call(zval* this_ptr,
 		zval **uri;
 		smart_str action = {0};
 
-		if (zend_hash_find(Z_OBJPROP_P(this_ptr), "uri", sizeof("uri"), (void *)&uri) == FAILURE) {
+		if (zend_hash_find(Z_OBJPROP_P(this_ptr), "uri", sizeof("uri"), (void *)&uri) == FAILURE || Z_TYPE_PP(uri) != IS_STRING) {
 			add_soap_fault(this_ptr, "Client", "Error finding \"uri\" property", NULL, NULL TSRMLS_CC);
 		} else if (location == NULL) {
 			add_soap_fault(this_ptr, "Client", "Error could not find \"location\" property", NULL, NULL TSRMLS_CC);
@@ -3006,7 +3006,8 @@ PHP_METHOD(SoapClient, __getLastRequest)
 		return;
 	}
 
-	if (zend_hash_find(Z_OBJPROP_P(this_ptr), "__last_request", sizeof("__last_request"), (void **)&tmp) == SUCCESS) {
+	if (zend_hash_find(Z_OBJPROP_P(this_ptr), "__last_request", sizeof("__last_request"), (void **)&tmp) == SUCCESS &&
+	    Z_TYPE_PP(tmp) == IS_STRING) {
 		RETURN_STRINGL(Z_STRVAL_PP(tmp), Z_STRLEN_PP(tmp), 1);
 	}
 	RETURN_NULL();
@@ -3024,7 +3025,8 @@ PHP_METHOD(SoapClient, __getLastResponse)
 		return;
 	}
 	
-	if (zend_hash_find(Z_OBJPROP_P(this_ptr), "__last_response", sizeof("__last_response"), (void **)&tmp) == SUCCESS) {
+	if (zend_hash_find(Z_OBJPROP_P(this_ptr), "__last_response", sizeof("__last_response"), (void **)&tmp) == SUCCESS &&
+	    Z_TYPE_PP(tmp) == IS_STRING) {
 		RETURN_STRINGL(Z_STRVAL_PP(tmp), Z_STRLEN_PP(tmp), 1);
 	}
 	RETURN_NULL();
@@ -3042,7 +3044,8 @@ PHP_METHOD(SoapClient, __getLastRequestHeaders)
 		return;
 	}
 	
-	if (zend_hash_find(Z_OBJPROP_P(this_ptr), "__last_request_headers", sizeof("__last_request_headers"), (void **)&tmp) == SUCCESS) {
+	if (zend_hash_find(Z_OBJPROP_P(this_ptr), "__last_request_headers", sizeof("__last_request_headers"), (void **)&tmp) == SUCCESS &&
+	    Z_TYPE_PP(tmp) == IS_STRING) {
 		RETURN_STRINGL(Z_STRVAL_PP(tmp), Z_STRLEN_PP(tmp), 1);
 	}
 	RETURN_NULL();
@@ -3060,7 +3063,8 @@ PHP_METHOD(SoapClient, __getLastResponseHeaders)
 		return;
 	}
 
-	if (zend_hash_find(Z_OBJPROP_P(this_ptr), "__last_response_headers", sizeof("__last_response_headers"), (void **)&tmp) == SUCCESS) {
+	if (zend_hash_find(Z_OBJPROP_P(this_ptr), "__last_response_headers", sizeof("__last_response_headers"), (void **)&tmp) == SUCCESS &&
+	    Z_TYPE_PP(tmp) == IS_STRING) {
 		RETURN_STRINGL(Z_STRVAL_PP(tmp), Z_STRLEN_PP(tmp), 1);
 	}
 	RETURN_NULL();
@@ -3116,13 +3120,15 @@ PHP_METHOD(SoapClient, __setCookie)
 	}
 
 	if (val == NULL) {
-		if (zend_hash_find(Z_OBJPROP_P(this_ptr), "_cookies", sizeof("_cookies"), (void **)&cookies) == SUCCESS) {
+		if (zend_hash_find(Z_OBJPROP_P(this_ptr), "_cookies", sizeof("_cookies"), (void **)&cookies) == SUCCESS &&
+		    Z_TYPE_PP(cookies) == IS_ARRAY) {
 			zend_hash_del(Z_ARRVAL_PP(cookies), name, name_len+1);
 		}
 	} else {
 		zval *zcookie;
 
-		if (zend_hash_find(Z_OBJPROP_P(this_ptr), "_cookies", sizeof("_cookies"), (void **)&cookies) == FAILURE) {
+		if (zend_hash_find(Z_OBJPROP_P(this_ptr), "_cookies", sizeof("_cookies"), (void **)&cookies) == FAILURE ||
+		    Z_TYPE_PP(cookies) != IS_ARRAY) {
 			zval *tmp_cookies;
 
 			MAKE_STD_ZVAL(tmp_cookies);
@@ -3150,7 +3156,8 @@ PHP_METHOD(SoapClient, __getCookies)
 
 	array_init(return_value);
 
-	if (zend_hash_find(Z_OBJPROP_P(this_ptr), "_cookies", sizeof("_cookies"), (void **)&cookies) != FAILURE) {
+	if (zend_hash_find(Z_OBJPROP_P(this_ptr), "_cookies", sizeof("_cookies"), (void **)&cookies) != FAILURE &&
+	    Z_TYPE_PP(cookies) == IS_ARRAY) {
 		zend_hash_copy(Z_ARRVAL_P(return_value), Z_ARRVAL_P(*cookies), (copy_ctor_func_t) zval_add_ref, (void *)&tmp, sizeof(zval*));
 	}
 }
@@ -4237,7 +4244,8 @@ static xmlDocPtr serialize_function_call(zval *this_ptr, sdlFunctionPtr function
 			}
 		}
 	} else {
-		if (zend_hash_find(Z_OBJPROP_P(this_ptr), "style", sizeof("style"), (void **)&zstyle) == SUCCESS) {
+		if (zend_hash_find(Z_OBJPROP_P(this_ptr), "style", sizeof("style"), (void **)&zstyle) == SUCCESS &&
+		    Z_TYPE_PP(zstyle) == IS_LONG) {
 			style = Z_LVAL_PP(zstyle);
 		} else {
 			style = SOAP_RPC;
@@ -4260,7 +4268,7 @@ static xmlDocPtr serialize_function_call(zval *this_ptr, sdlFunctionPtr function
 		}
 
 		if (zend_hash_find(Z_OBJPROP_P(this_ptr), "use", sizeof("use"), (void **)&zuse) == SUCCESS &&
-			  Z_LVAL_PP(zuse) == SOAP_LITERAL) {
+		    Z_TYPE_PP(zuse) == IS_LONG && Z_LVAL_PP(zuse) == SOAP_LITERAL) {
 			use = SOAP_LITERAL;
 		} else {
 			use = SOAP_ENCODED;
@@ -4390,6 +4398,7 @@ static xmlNodePtr serialize_parameter(sdlParamPtr param, zval *param_val, int in
 		zval **param_data;
 
 		if (zend_hash_find(Z_OBJPROP_P(param_val), "param_name", sizeof("param_name"), (void **)&param_name) == SUCCESS &&
+		    Z_TYPE_PP(param_name) == IS_STRING &&
 		    zend_hash_find(Z_OBJPROP_P(param_val), "param_data", sizeof("param_data"), (void **)&param_data) == SUCCESS) {
 			param_val = *param_data;
 			name = Z_STRVAL_PP(param_name);