pass by reference in php 5

let's see a zend mock test question for php 5 certification.

Question:

Consider the following script:


This code has changed behavior in PHP 5. Identify the output of this script as it would have been in PHP 4, as well as the new behavior in PHP 5.


Answer:

1. array('a', 'a', 'b')
2. array('a', 'b', 'c')
This will show in php 5.
3. array('c', 'b', 'a')
4. array('c', 'c', 'c')
I think this will be the result for php 4.
5. array('b', 'b', 'b')
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