Which statement is incorrect? 

Which options will fail to remove the element 'y' when placed in the blank space in the below sample code? $row = array(0 => 'x', 1 => 'y', 2 => 'z', 3 => 'w'); ___________ print_r($row);

Placing the ... symbol before a function tells PHP to suppress any errors generated by that function.

Which in-built function will add a value to the end of an array?

If the directive session.cookie_lifetime is set to 3600, the cookie will live until .........

Which will detect which request type was used (GET, POST, PUT or DELETE)?

The logical operator OR is similar to:

Operator to concatenate strings in PHP?

Which PHP function completely destroys all data relevant to the session?

What should you do in advance, to get and set session variable

strpos() stands for