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CHALLENGE SOLUTION: ISBN Checker
CHALLENGE: Mind your language
CHALLENGE SOLUTION: Mind your language
How to sort data in an array
How to explode and implode strings
How to add elements to an array
CHALLENGE: Around the world in 80 days
CHALLENGE SOLUTION: Around the world in 80 days
Removing elements from an array
CHALLENGE: It's getting hot in here
CHALLENGE SOLUTION: It's getting hot in here
How to select a random element from an array
CHALLENGE SOLUTION: Pick a card
CHALLENGE: Let's go shopping
CHALLENGE: Let's go shopping.pdf
CHALLENGE SOLUTION: Let's go shopping