The code passes result of a PHP SQL query through Java script to a App inventor application running on a phone. It uses a special App Inventor Jave script feature called window.AppInventor.getWebViewString(), which allows App Inventor apps to communicate with the WebViewer component's internal processing of javascript.
Call this SQL query using syntax: https://sedwano.com/THPL-appinventor.php?sensor=sensor2001
Will try to get info from: sensor2001
Connected to SQL for graphing {temp, humidity, atm pres, lux} from sensor2001.| ID | Temp | Humid |
| 132280 | 24.21 | 52.6338 |
| 132268 | 24.95 | 52.4795 |
| 132256 | 25.67 | 52.8301 |
| 132244 | 24.59 | 56.1094 |
| 132223 | 23.31 | 64.5557 |
| 132211 | 23.14 | 65.0703 |
| 132199 | 23.4 | 66.5127 |
| 132187 | 23.73 | 66.958 |
| 132175 | 23.79 | 67.7383 |
| 132163 | 24.28 | 66.6689 |
Allocated variables from SQL to AppInventor via PHP and Javascript