You are using the following code to decide if a button is clicked, but it is never returning true. Which step is most likely to shed light on the problem? isset($_POST['submit'])

Why should you follow a PSR standard?

What are getters and setters?

Which PHP variable name is invalid?

Which command will extract the domain suffix ("com") from the string $string = "https://cat-bounce.com";?

Where is PHP code executed?

Which one generates a unique ID for members of your site?

How would you create a numeric array from the following string that did not include '-test' and where each digit had its own array key? $str = '6.1.4.2.6-test';

The following code will produce: var_dump(5 === '5');

Which array allows you to use textual keys so that array indices can be more descriptive?

What is the value of $start after exiting the for loop?