Is this code correct

Question

https://code.sololearn.com/wRx3zSf3aeU0/?ref=app
action page

https://code.sololearn.com/w55tcanM5gGD/?ref=app

Answer 1

its correct

Answer 2

It's correct, but take care if you access the test_action page directly, you'll get an error. To avoid it you should verify the existence of this index before access it like :

if( isset($_GET['name']) ) {
$a = $_GET['name'];
} else {
$a = 'Default value';
}

This will improve the robustess of your code.

Answer 3

but i ve heard that both single and double quotes work

Answer 4

thank you