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The PHP Tags Giving information back to the user A little Syntax
The following php functions were used: define echo int

Properly terminating statements What is a comment Double Quotes and Single Quotes Are things Set? What if… The Curly Brackets
The following php functions were used: define echo int isset

If, else, then The Array Counting, does it exist? Print for Reading
The following php functions were used: array echo

Working with numbers Comparing Number Doing a discount
The following php functions were used: echo

Commenting Counting an array Are things set? User Input and processing
The following php functions were used: array count echo int isset print_r

Exploding, Imploding Arrays Replacing text
The following php functions were used: echo str_replace

What do – & + do? What do / & * do? What do ( & ) do?
The following php functions were used: abs echo sqrt trim

What is a form How do I submit Trimming user data PHP and HTML intermingling
The following php functions were used: echo int

String Lengths Change a string to lower case Change a string to upper case Changing the first letter to capitol
The following php functions were used: echo str_replace strlen strtolower ucfirst

Is my order in your list? Shirts list Processing text and or user input
The following php functions were used: array echo in_array int print_r strlen strtoupper trim

Looping While X < ? Do this.. For X starts as 0 to 10 do this foreach bucket in my closet fill it with water(not really)
The following php functions were used: array echo

For Each loop broken down to a for loop A for loop
The following php functions were used: array count echo

Making a drop down menu dynamically Use the ever-famous shirts list! Use a form to select a shirt and order it
The following php functions were used: array echo int isset

A bit complex Yet as simple as include() Getting information from other files by including Arrays can be inside of another array
The following php functions were used: array count echo explode in_array include isset stripslashes trim

Showing how you order things really matters Including multiple files may overwrite some variables Manage your variables wisely.
The following php functions were used: array echo include print_r

Difference between Plain old Include and Include_once Proof that Happy Pancakes exist
The following php functions were used: echo include include_once

Parts of strings Positions in Strings String lengths once more
The following php functions were used: echo strlen strpos substr

Dates Time In Function form
The following php functions were used: date echo time

Making Time Using the date function to show the made up time
The following php functions were used: date echo mktime

Use Previous functions to make up a story Use some random generation to do some story randomization that is used later Have Fun
The following php functions were used: array count date echo mktime rand

Build a function Use a custom function
The following php functions were used: echo int rand return

What are sessions? They keep info from one page and if you click on a link in the same site, it also keeps that info available to the server.
The following php functions were used: echo isset session_start strlen trim

How to destroy a Session, like logging out An example of logging in and out(fake since I haven’t taught how to do password management safely yet)
The following php functions were used: echo int print_r session_destroy session_start

Getting the contents of another file Editing it, and returning the manipulated content This can be used for "cheapo" templates
The following php functions were used: echo file_get_contents str_replace

Here is my tutorial of the game my friend made. Note, This is not his source code, but I made it right on the spot. Also, my mic was off the first time, so this is a voice over.
The following php functions were used: array echo int isset session_start

Showing the Use of Hashes Generating hashes The difference between certain algorithms
The following php functions were used: echo hash md5 sha1

Create a hash for my "generic" password Make a login form Get user input, hash it Compare the hashes Determine if valid credentials.
The following php functions were used: echo isset sha1 trim

Use the terminal to execute PHP Use the terminal to get data from the user(instead of the web browser) Use php in the terminal to give information back Make a game.
The following php functions were used:

Save a file Overwrite a file The differences between the PHP 5 method and the PHP 4 method
The following php functions were used: fclose file_put_contents fopen fwrite

Show what Serializing does Show what unserializing a serialized string does Show how to store and use later
The following php functions were used:

Convert the game from tutorial 25 to Command Line Interface mode Use Serialize to save the game Use Unserialize to load the game back.
The following php functions were used: array echo error_reporting fgets file_get_contents file_put_contents int isset return serialize strlen strtolower substr trim unserialize