Wifi esp8266mode mcu code -php-sql

HTTPClient http;
String url = “http://xxx.xxx.xxx.xxx/php/temps/add.php?temp=”+String(temperatureCString) :

  http.begin(url);
 // http.begin(url_01);//new
  
  //using GET method to write to sql
  int httpCode = http.GET();
  if(httpCode > 0)
  {
      Serial.printf("[HTTP] GET...code: %d\n", httpCode);
        if(httpCode == HTTP_CODE_OK)
        {
          String payload = http.getString();
          Serial.println(payload);
        }
  }
     else
     {
        Serial.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
     }
      http.end();

Τhe error is in the definition of diffuse php, when more than one variable is conveyed. can someone help in the code?
How to entry of two variable temp1 and temp2