Javascript-PHP reads a column of data in MySQL and dynamically displays it in JS.

If there is a great God, you can add me QQ: 276294051, if you have help, you can raise compensation! PHP can read data and assign values to the array. However, the following code is not displayed in the JS diagram: {code...} no error message. It cannot be displayed! Expected trends

If there is a great God, you can add me QQ: 276294051, if you have help, you can raise compensation!
PHP can read data and assign values to the array, but it cannot be displayed in the JS diagram.
The code is as follows:

  $ Row ['Time'], 'y' => $ row ['Now']); // time is yyyy-mm-dd hh: mm: ss format $ dataJson = json_encode ($ data) ;}// print_r ($ data) ;?>