Pinned Loading

1. sql_tutorial.sql sql_tutorial.sql

   1

   SET SQL_MODE = "NO_AUTO_VALUE_ON_ZERO";

   2

   SET AUTOCOMMIT = 0;

   3

   START TRANSACTION;

   4

   SET time_zone = "+00:00";

   5

2. A simple calculator in html and php A simple calculator in html and php

   1

   <?php

   2

   $currentValue = 0;

   3

   4

   $input = [];

   5