A. When the parameter is Boolean
B. When the function is being declared as a member of a class
C. When the parameter is being declared as passed by reference
D. When the function contains only one parameter
What is the difference between print() and echo()?
There are three different kind of arrays:
What functions count elements in an array?
What array will you get if you convert an object to an array?
Assume you would like to sort an array in ascending order by value while preserving key associations. Which of the following PHP sorting functions would you use?