open custom AP on esp8266 with AP_name, optional password, optional channel number, and option to hide AP

Esp8266 custom AP

/*open custom ap on esp8266 with AP_name, optional password, optional channel number, and option to hide AP. */
void CreateAP(String NetworkName, String NetworkPassword = emptyString, int channel=1, bool hidden = false)
{
  Serial.println("[Name] " + NetworkName);
  Serial.println("[Password] " + NetworkPassword);
  Serial.println("[channel] " + String(channel));
  Serial.println("[hidden] " + String(hidden? "Yes" : "No"));
  
  WiFi.mode(WIFI_AP);

  int str_len = NetworkName.length() + 1;
  Serial.println("[NetworkName] " + String(str_len));
  char ssid[str_len];
  NetworkName.toCharArray(ssid, str_len);

  str_len = NetworkPassword.length() + 1;
  Serial.println("[NetworkPassword] " + String(str_len));
  char password[str_len];
  NetworkPassword.toCharArray(password, str_len);

 
  delay(2000);
  Serial.println("[res] " + String(WiFi.softAP(ssid, password, channel, hidden)));
  delay(2000);
}