PHP for Beginners - Every line of code used explained in detail
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INTRODUCTION

Preparing the development environment
PHP BASICS

"Hello, World!" - your first PHP code
Using the correct syntax
Variables in PHP
How to assign variables
PHP data types
How to add comments to PHP code
Viewing PHP output using echo and print
Folder structures and getting organised
Quiz - PHP Basics
BASIC OPERATORS

How to use concatenation
How to add and subtract numbers
How to multiply and divide numbers
How to use the modulus operator
Using exponents
CHALLENGE: Back to School
CHALLENGE RESOURCE - Back to School PDF
CHALLENGE SOLUTION: Back to School
CHALLENGE RESOURCE: Back to School - formula sheet
More concatenation
CHALLENGE: What's in a name
CHALLENGE SOLUTION: What's in a name
IF STATEMENTS

Logical and comparison operators
IF statements
IF ELSE statements
IF ELSEIF statements
More logical and comparison operators
BASIC LOOPS

Incrementors and Decrementors
How to use a FOR loop
How to use a WHILE loop
CHALLENGE: Multiples
CHALLENGE: Multiples
CHALLENGE SOLUTION: Multiples
CHALLENGE: Fizz Buzz
CHALLENGE: Fizz Buzz
CHALLENGE SOLUTION: Fizz Buzz
PHP INTERNAL FUNCTIONS

Using the PHP online reference manual
How to generate a random number
CHALLENGE: Odds and Evens
CHALLENGE SOLUTION: Odds and Evens
CHALLENGE: Who ate all the pi?
CHALLENGE SOLUTION: Who ate all the pi?
How to use the date function
CHALLENGE: Carpe Diem
CHALLENGE RESOURCE: Carpe Diem PDF
CHALLENGE SOLUTION: Carpe Diem
Time Functions
CHALLENGE: Santa Claus is coming to town
CHALLENGE: Santa Claus is coming to town
CHALLENGE SOLUTION: Santa Claus is coming to town
HTML FORMS AND DATA PROCESSING

How to create a basic HTML page
How to create a HTML form
Processing HTML form data
CHALLENGE: Temperature Conversion
CHALLENGE: Temperature Conversion
CHALLENGE SOLUTION: Temperature Conversion
FUNCTIONS AND STRINGS

How to find the length of a word or sentence
How to count words in strings
CHALLENGE: How long is a piece of string
CHALLENGE SOLUTION: How long is a piece of string
How to count words in a sentence
How to replace characters in strings
How to shuffle a string
CHALLENGE: Mission Impossible
CHALLENGE: Mission Impossible
CHALLENGE SOLUTION: Mission Impossible
Double quotes versus single quotes
How to escape strings
CHALLENGE: The Great Escape
CHALLENGE: The Great Escape
CHALLENGE SOLUTION: The Great Escape
BASIC ARRAYS

What is an array?
How to loop through an array
How to split a string and place into an array
CHALLENGE: ISBN Checker
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
How to use array_slice()
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: Pick a card
CHALLENGE SOLUTION: Pick a card
CHALLENGE: Let's go shopping
CHALLENGE: Let's go shopping.pdf
CHALLENGE SOLUTION: Let's go shopping
ASSOCIATIVE ARRAYS

Associative arrays
How to loop through an associative array
CHALLENGE: Capital cities of the world
CHALLENGE: Capital cities of the world
CHALLENGE SOLUTION: Capital cities of the world
USER-DEFINED FUNCTIONS

How to create a function
How to use variables in functions
How to pass arguments to functions
How to return a value from a function
How to return multiple values from a function
SESSIONS AND COOKIES

How to create a cookie
How to read a cookie
How to update a cookie
How to delete a cookie
CHALLENGE: All about me
CHALLENGE: All about me
CHALLENGE SOLUTION: All about me
How to create a session
How to read a session
How to update a session.
How to destroy a session
CHALLENGE: Hit me baby one more time
CHALLENGE: Hit me baby one more time
CHALLENGE SOLUTION: Hit me baby one more time
CHALLENGES

CHALLENGE: Palindromes
CHALLENGE: Palindromes
CHALLENGE SOLUTION: Palindromes
CHALLENGE: Chessboard
CHALLENGE SOLUTION: Chessboard

CHALLENGE SOLUTION: Back to School

This is the solution for the Back to School challenge.