Hi.
To what project are you referring to?
Regards,
Sara

hi Sara
i m refer to project of 
ESP32/ESP8266 Insert Data into MySQL Database using PHP and Arduino IDE
thanks
kang

Hi.
 
That is just a random string that we generated ourselves to server as “API key”. 
You can use the same we use in the project, or you can generate one yourself.
If you use a different string, you need to change in the arduino sketch and on the PHP file.
 
Let me know if this is clear.
Regards,
Sara

I get it error from serial monitor :

Connected to WiFi network with IP Address: 192.168.137.104

httpRequestData: api_key=tPmAT5Ab3j7F9&sensor=BME280&location=Office&value1=23.34&value2=42.49&value3=1005.76

Error code: -1

that anything i miss out ?

Hi.
Does your server support HTTPS requests?
What server are you using?
Regards,
Sara

hi Sara 
000webhost
best regards
 

Hi.
Unfortunately, those free hosts don’t allow you to use the full functionalities. So, they block many incoming connections like the ESP32, because to keep their service free, they can’t handle that type of traffic.
They consider the ESP32 a bot attack.
Regards,
Sara

 
HI 
I was sign up the included feature database  
but the error still there  could you please let me what is my mistake 
 
 

3fffffc0:  feefeffe feefeffe 3fffdab0 40101001  

<<<stack<<<

--------------- CUT HERE FOR EXCEPTION DECODER ---------------

 ets Jan  8 2013,rst cause:2, boot mode:(3,6)

load 0x4010f000, len 3424, room 16 

tail 0

chksum 0x2e

load 0x3fff20b8, len 40, room 8 

tail 0

chksum 0x2b

csum 0x2b

v00061d00

~ld

����g�s��n|�$�l`c��|r�l�o��g�l`��;�d�d��Connecting

.......

Connected to WiFi network with IP Address: 192.168.137.79

Could not find a valid BME280 sensor, check wiring or change I2C address!

Ln 20, Col 41
NodeMCU 1.0 (ESP-12E Module)
on COM9
 
 

hi

another question is that safe to sign up the hostinger
i was try it again, found wrong pin ,  now is ok
but how to set time to suit my area ?
thanks

Hi.
What’s the exactly the tutorial that you’re following?
I think we have a line in the php code that you can uncomment to adjust the time.
Regards,
Sara