PHP Taskbook Level 5.4
An array with numbers is given. When entering the page, write all the numbers from the array into the input, separating them with commas.
A form with an arbitrary number of inputs is given. Numbers are entered into the inputs. After sending the form, find the sum of the numbers entered and display it on the screen.
A form with an input is given. An email is entered into the input. After sending the form, check whether the email is correct or not and display information about this on the screen.
A form with a button and an input is given. A number is entered into the input, for example, '12345'. After submitting the form, break the number into digits and output each digit in its own tag li:
<ul>
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
</ul>
