/*

  Rui Santos & Sara Santos - Random Nerd Tutorials

  Complete project details at https://RandomNerdTutorials.com/get-change-esp32-esp8266-mac-address-arduino/

  Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files.  

  The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

*/

#include <WiFi.h>

#include <esp_wifi.h>

​

void readMacAddress(){

  uint8_t baseMac[6];

  esp_err_t ret = esp_wifi_get_mac(WIFI_IF_STA, baseMac);

  if (ret == ESP_OK) {

    Serial.printf("%02x:%02x:%02x:%02x:%02x:%02x\n",

                  baseMac[0], baseMac[1], baseMac[2],

                  baseMac[3], baseMac[4], baseMac[5]);

  } else {

    Serial.println("Failed to read MAC address");

  }

}

​

void setup(){

  Serial.begin(115200);

​

  WiFi.mode(WIFI_STA);

  WiFi.STA.begin();

​

  Serial.print("[DEFAULT] ESP32 Board MAC Address: ");

  readMacAddress();

}

void loop(){

​

}

change in php.ini file

​

variables_order = "GPCS"