diff --git a/opencv.cc b/opencv.cc
index f8267e3..026ffa3 100644
--- a/opencv.cc
+++ b/opencv.cc
@@ -254,6 +254,9 @@ const zend_function_entry opencv_functions[] = {
     ZEND_NS_NAMED_FE(OPENCV_DNN_NS, readNetFromCaffe, ZEND_FN(opencv_dnn_read_net_from_caffe), arginfo_void)
     ZEND_NS_NAMED_FE(OPENCV_DNN_NS, readNetFromTorch, ZEND_FN(opencv_dnn_read_net_from_torch), arginfo_void)
     ZEND_NS_NAMED_FE(OPENCV_DNN_NS, readNetFromTensorflow, ZEND_FN(opencv_dnn_read_net_from_tensorflow), arginfo_void)
+    ZEND_NS_NAMED_FE(OPENCV_DNN_NS, readNetFromONNX, ZEND_FN(opencv_dnn_read_net_from_onnx), arginfo_void)
+    ZEND_NS_NAMED_FE(OPENCV_DNN_NS, readNetFromModelOptimizer, ZEND_FN(opencv_dnn_read_net_from_model_optimizer), arginfo_void)
+    ZEND_NS_NAMED_FE(OPENCV_DNN_NS, readNetFromDarknet, ZEND_FN(opencv_dnn_read_net_from_darknet), arginfo_void)
     ZEND_NS_NAMED_FE(OPENCV_NS, imdecode, ZEND_FN(opencv_imdecode), arginfo_void)
 	PHP_FE_END	/* Must be the last line in opencv_functions[] */
 };
diff --git a/source/opencv2/dnn/opencv_dnn.cc b/source/opencv2/dnn/opencv_dnn.cc
index 10e1b43..af8ccac 100644
--- a/source/opencv2/dnn/opencv_dnn.cc
+++ b/source/opencv2/dnn/opencv_dnn.cc
@@ -154,6 +154,81 @@ PHP_FUNCTION(opencv_dnn_read_net_from_tensorflow)
     RETURN_ZVAL(&instance,0,0);
 }
 
+PHP_FUNCTION(opencv_dnn_read_net_from_onnx)
+{
+    char *filename;
+    size_t filename_len;
+    if (zend_parse_parameters(ZEND_NUM_ARGS(), "s", &filename, &filename_len) == FAILURE) {
+        RETURN_NULL();
+    }
+
+    zval instance;
+    object_init_ex(&instance, opencv_dnn_net_ce);
+    opencv_dnn_net_object *obj = Z_PHP_DNN_NET_OBJ_P(&instance);
+    obj->DNNNet = readNetFromONNX(filename);
+
+    RETURN_ZVAL(&instance,0,0);
+}
+
+PHP_FUNCTION(opencv_dnn_read_net_from_model_optimizer)
+{
+    char *xml, *bin;
+    size_t xml_len, bin_len;
+    if (zend_parse_parameters(ZEND_NUM_ARGS(), "ss", &xml, &xml_len, &bin, &bin_len) == FAILURE) {
+        RETURN_NULL();
+    }
+
+    ifstream xmlFile;
+    xmlFile.open(xml);//open the input file
+    stringstream xmlStream;
+    xmlStream << xmlFile.rdbuf();//read the file
+    string xmlData = xmlStream.str();
+
+    ifstream binFile;
+    binFile.open(bin, ios::binary);//open the input file
+    stringstream binStream;
+    binStream << binFile.rdbuf();//read the file
+    string binData = binStream.str();
+
+    zval instance;
+    object_init_ex(&instance, opencv_dnn_net_ce);
+    opencv_dnn_net_object *obj = Z_PHP_DNN_NET_OBJ_P(&instance);
+
+    obj->DNNNet = readNetFromModelOptimizer(xmlData, binData);
+
+    RETURN_ZVAL(&instance,0,0);
+}
+
+PHP_FUNCTION(opencv_dnn_read_net_from_darknet)
+{
+    char *cfg, *bin;
+    size_t cfg_len, bin_len;
+    if (zend_parse_parameters(ZEND_NUM_ARGS(), "ss", &cfg, &cfg_len, &bin, &bin_len) == FAILURE) {
+        RETURN_NULL();
+    }
+
+    ifstream cfgFile;
+    cfgFile.open(cfg);//open the input file
+    stringstream cfgStream;
+    cfgStream << cfgFile.rdbuf();//read the file
+    string cfgData = cfgStream.str();
+
+    ifstream binFile;
+    binFile.open(bin, ios::binary);//open the input file
+    stringstream binStream;
+    binStream << binFile.rdbuf();//read the file
+    string binData = binStream.str();
+
+    zval instance;
+    object_init_ex(&instance, opencv_dnn_net_ce);
+    opencv_dnn_net_object *obj = Z_PHP_DNN_NET_OBJ_P(&instance);
+
+    //obj->DNNNet = readNetFromDarknet(cfgData.c_str(), cfgData.size());
+    obj->DNNNet = readNetFromDarknet(cfgData.c_str(), cfgData.size(), binData.c_str(), binData.size());
+
+    RETURN_ZVAL(&instance,0,0);
+}
+
 PHP_METHOD(opencv_dnn_net, setInput)
 {
     zval *image_zval;
diff --git a/source/opencv2/dnn/opencv_dnn.h b/source/opencv2/dnn/opencv_dnn.h
index 15f60ac..98c66e6 100644
--- a/source/opencv2/dnn/opencv_dnn.h
+++ b/source/opencv2/dnn/opencv_dnn.h
@@ -30,4 +30,7 @@ extern void opencv_dnn_init(int module_number);
 PHP_FUNCTION(opencv_dnn_blob_from_image);
 PHP_FUNCTION(opencv_dnn_read_net_from_torch);
 PHP_FUNCTION(opencv_dnn_read_net_from_caffe);
-PHP_FUNCTION(opencv_dnn_read_net_from_tensorflow);
\ No newline at end of file
+PHP_FUNCTION(opencv_dnn_read_net_from_tensorflow);
+PHP_FUNCTION(opencv_dnn_read_net_from_onnx);
+PHP_FUNCTION(opencv_dnn_read_net_from_model_optimizer);
+PHP_FUNCTION(opencv_dnn_read_net_from_darknet);