Which of the following statements is incorrect?

What is the outpu?

Which features are supported in PHP5?

Output of the code?

Which is not related to debugging in PHP?

Output of the code? ' ?>'

Given an array of images, $images = array('img12.png', 'img10.png', 'img2.png', 'img1.png'), which function will sort $images into ('img1.png', 'img2.png', 'img10.png', 'img12.png')?

When adding ('+' function) two variables of type integer and type string, what type is the resulting value?

Given the following code: printVar(); ?> What will the output be?

What is the output of the following code? $a='20' $a -= 5; echo $a++;

Result of calling json_encode() on an empty array?