Exercises

1. The process control functions are Unix-only: true or false?

2. Using pcntl_fork() is a good way to do multi-threading: true or false?

3. The pcntl_exec() function is functionally the same as the exec() function: true or false?

4. Which SPL interface lets you use your object as an array?

   • a) ArrayObject

   • b) ArrayAccess

   • c) ArrayClass

   • d) ArrayIterator

5. What is the filename that needs to be downloaded to use browser detection?

6. What does bcpowmod() do?

   • a) Calculates the power of a modulo division

   • b) Calculates the lowest-common denominator of a fraction

   • c) Calculates the median average of a multiplication

   • d) Calculates the remainder of a division on a multiplication

7. Templates make the job of separating design from layout easier: true or false?

Copyright ©2015 Paul Hudson. Follow me: @twostraws.