php - 小数保护php mysql

Question

如何保证小数？在Mysql中，我有type = Decimal value = 6,2。预先感谢您的帮助

   <li> 
            <label for="price" class="text">Price:</label>
            <input name="price" type="text" id="price" tabindex="210"/>
   </li>

$price = $_POST["price"];

要么

$price = mysqli_real_escape_string($connection, $price);

Answer 1

采用：

$price = filter_input(INPUT_POST, 'price', FILTER_VALIDATE_FLOAT);