Head First PHP & MySQL

Name: Head First PHP & MySQL | A Brain-Friendly Guide
Brand: O'Reilly
Price: 35.49 EUR
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A Brain-Friendly Guide

Lynn Beighley(Autor*in)

O'Reilly (Verlag)

Erschienen am 22. Dezember 2008

814 Seiten

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Inhalt

Intro
Author(s) of Head First PHP & MySQL
Table of Contents
How to Use This Book: Intro
Who is this book for?
We know what you're thinking
We know what your brain is thinking
Metacognition: thinking about thinking
Here's what WE did:
Here's what YOU can do to bend your brain into submission
Read Me
The technical review team
Acknowledgments
Safari(R) Books Online
Chapter 1: Add Life to Your Static Pages: It's Alive
HTML is static and boring
PHP brings web pages to life
Dogs in space
A form helps Owen get the whole story
Forms are made of HTML
The HTML form has problems
HTML acts on the CLIENT
PHP acts on the SERVER
PHP scripts run on the server
Use PHP to access the form data
PHP scripts must live on a server!
Get your PHP scripts to the server
The server turns PHP into HTML
Deconstructing Owen's PHP script
A few PHP rules to code by
Finding the perfect variable name
Variables are for storing script data
$_POST is a special variable that holds form data
$_POST transports form data to your script
Creating the email message body with PHP
Even plain text can be formatted... a little
Newlines need double-quoted strings
Assemble an email message for Owen
Variables store the email pieces and parts
Sending an email message with PHP
Owen starts getting emails
Owen starts losing emails
Your PHP & MySQL Toolbox
Chapter 2: Connecting to MySQL: How It Fits Together
Owen's PHP form works well. Too well...
MySQL excels at storing data
Owen needs a MySQL database
Create a MySQL database and table
The INSERT statement in action
Use SELECT to get table data
Let PHP handle the tedious SQL stuff
PHP lets data drive Owen's web form
Connect to your database from PHP
Insert data with a PHP script
Use PHP functions to talk to the database
Get connected with mysqli_connect()
Build the INSERT query in PHP
Query the MySQL database with PHP
Close your connection with mysqli_close()
$_POST provides the form data
Owen needs help sifting through his data
Owen's on his way to finding Fang
Chapter 3: Create and Populate a Database: Creating Your Own Data
The Elvis store is open for business
Elmer needs an application
Visualize Elmer's application design
It all starts with a table
Make contact with the MySQL server
Create a database for Elmer's emails
Create a table inside the database
We need to define our data
Take a meeting with some MySQL data types
Create your table with a query
Getting the table in front of the database
USE the database before you use it
DESCRIBE reveals the structure of tables
Elmer's ready to store data
Create the Add Email script
The other side of Elmer's application
The nuts and bolts of the Send Email script
First things first, grab the data
mysqli_fetch_array() fetches query results
Looping for a WHILE
Looping through data with while
You've got mail...from Elmer!
Sometimes people want out
Removing data with DELETE
Use WHERE to DELETE specific data
Minimize the risk of accidental deletions
MakeMeElvis.com is a web application
Your PHP & MySQL Toolbox
Chapter 4: Realistic and Practical Applications: Your Application on the Web
Elmer has some irritated customers
Protecting Elmer from... Elmer
Demand good form data
The logic behind Send Email validation
Your code can make decisions with IF
Testing for truth
IF checks for more than just equality
The logic behind Send Email validation
PHP functions for verifying variables
Test multiple conditions with AND and OR
Form users need feedback
Ease in and out of PHP as needed
Use a flag to avoid duplicate code
Code the HTML form only once
A form that references itself
Point the form action at the script
Check to see if the form has been submitted
Some users are still disgruntled
Table rows should be uniquely identifiable
What Elmer's table contains now:
What Elmer's table should contain:
Primary keys enforce uniqueness
The five rules of primary keys:
From checkboxes to customer IDs
Loop through an array with foreach
Your PHP & MySQL Toolbox
Chapter 5: Working with Data Stored in Files: When a Database Just Isn't Enough
Virtual guitarists like to compete
Text can't be trusted
The proof is in the picture
The application needs to store images
Planning for image file uploads in Guitar Wars
The high score database must be ALTERed
How do we get an image from the user?
Insert the image filename into the database
Find out the name of the uploaded file
Where did the uploaded file go?
Create a home for uploaded image files
Shared data has to be shared
Shared script data is required
Think of require_once as "insert
Order is everything with high scores
Honoring the top Guitar Warrior
Format the top score with HTML and CSS
Only small images allowed
File validation makes the app more robust
Plan for an Admin page
Generate score removal links on the Admin page
Scripts can communicate with each other
Of GETs and POSTs
GET, POST, and high score removal
Isolate the high score for deletion
Control how much you delete with LIMIT
Your PHP & MySQL Toolbox
Chapter 6: Securing Your Application: Assume They're All Out to Get You
The day the music died
Where did the high scores go?
Securing the teeming hordes
Protecting the Guitar Wars Admin page
HTTP authentication requires headers
Take control of headers with PHP
Authenticating with headers
OK, so maybe Guitar Wars is NOT secure
Create an Authorize script
Guitar Wars Episode II : Attack of the High Score Clones
Subtraction by addition
Security requires humans
Plan for moderation in Guitar Wars
Make room for approvals with ALTER
Unapproved scores aren't worthy
The million-point hack
Everything in moderation... ?
How exactly did she do it?
Tricking MySQL with comments
The Add Score form was SQL injected
Protect your data from SQL injections
A safer INSERT (with parameters)
Form validation can never be too smart
Cease fire!
Your PHP & MySQL Toolbox
Chapter 7: Building Personalized Web Apps: Remember Me?
They say opposites attract
Mismatch is all about personal data
Mismatch needs user log-ins
Come up with a user log-in gameplan
Prepping the database for log-ins
Constructing a log-in user interface
Encrypt passwords with SHA()
Comparing passwords
Making room for the encrypted password
Authorizing users with HTTP
Logging In Users with HTTP Authentication
A form for signing up new users
Give users a chance to sign up
Sometimes you just need a cookie
What's in a cookie?
Use cookies with PHP
Rethinking the flow of log-ins
A cookie-powered log-in
Navigating the Mismatch application
Logging out means deleting cookies
Sessions aren't dependent on the client
The life and times of sessions
Keeping up with session data
Renovate Mismatch with sessions
Log out with sessions
Complete the session transformation
Users aren't feeling welcome
Sessions are short-lived...
... but cookies can last forever!
Sessions + Cookies = Superior log-in persistence
Your PHP & MySQL Toolbox
Chapter 7 1/2: Eliminate Duplicate Code: Sharing Is Caring
Mismatch is in pieces
Rebuilding Mismatch from a template
Rebuild Mismatch with templates
Mismatch is whole again... and much better organized
Chapter 8: Control Your Data, Control Your World: Harvesting Data
Making the perfect mismatch
Mismatching is all about the data
Break down the Mismatch data
Model a database with a schema
Wire together multiple tables
Foreign keys in action
Tables can match row for row
One row leads to many
Matching rows many-to-many
Build a Mismatch questionnaire
Get responses into the database
We can drive a form with data
Speaking of efficiency...
Generate the Mismatch questionnaire form
The data is now driving the form
Strive for a bit of normalcy
When normalizing, think in atoms
Why be normal, really?
Three steps to a normal database
Altering the Mismatch database
So is Mismatch really normal?
A query within a query within a query...
Let's all join tables
Connect with dots
Surely we can do more with inner joins
Simplifying ON with USING
Nicknames for tables and columns
Joins to the rescue
Love is a numbers game
Five steps to a successful mismatch
Prepare for the mismatch search
Compare users for "mismatchiness
All we need is a FOR loop
Finishing the mismatching
Your PHP & MySQL Toolbox
Chapter 9: String and Custom Functions: Better Living Through Functions
A good risky job is hard to find
The search leaves no margin for error
SQL queries can be flexible with LIKE
Explode a string into individual words
implode() builds a string from substrings
Preprocess the search string
Replace unwanted search characters
The query needs legit search terms
Copy non-empty elements to a new array
Sometimes you just need part of a string
Extract substrings from either end
Multiple queries can sort our results
Functions let you reuse code
Build a query with a custom function
SWITCH makes far more decisions than IF
Give build query() the ability to sort
We can paginate our results
Get only the rows you need with LIMIT
Control page links with LIMIT
Keep track of the pagination data
Set up the pagination variables
Revise the query for paginated results
Generate the page navigation links
Putting together the complete Search script
The complete Search script, continued...
Your PHP & MySQL Toolbox
Chapter 10: Regular Expressions: Rules for Replacement
Risky Jobs lets users submit resumes
Decide what your data should look like
Formulate a pattern for phone numbers
Match patterns with regular expressions
Build patterns using metacharacters
Fine-tune patterns with character classes
Check for patterns with preg_match()
Standardize the phone number data
Get rid of the unwanted characters
Matching email addresses can be tricky
Domain suffixes are everywhere
Use PHP to check the domain
Email validation: putting it all together
Your PHP & MySQL Toolbox
Chapter 11: Visualizing Your Data... and More!: Drawing Dynamic Graphics
Guitar Wars Reloaded: Rise of the Machines
No input form is safe
We need to separate man from machine
We can defeat automation with automation
Generate the CAPTCHA pass-phrase text
Visualizing the CAPTCHA image
Inside the GD graphics functions
The GD graphics functions continued...
Drawing text with a font
Generate a random CAPTCHA image
Returning sanity to Guitar Wars
Add CAPTCHA to the Add Score script
Five degrees of opposability
Charting mismatchiness
Storing bar graph data
From one array to another
Build an array of mismatched topics
Formulating a bar graphing plan
Crunching categories
Doing the category math
Bar graphing basics
Draw and display the bar graph image
Individual bar graph images for all
Mismatch users are digging the bar graphs
Your PHP & MySQL Toolbox
Chapter 12: Syndication and Web Services: Interfacing to the World
Owen needs to get the word out about Fang
Push alien abduction data to the people
RSS pushes web content to the people
RSS is really XML
From database to newsreader
Visualizing RSS
Dynamically generate an RSS feed
Link to the RSS feed
A video is worth a million words
Pulling web content from others
Syndicating YouTube videos
Make a YouTube video request
Owen is ready to build a REST request
YouTube speaks XML
Deconstruct a YouTube XML response
Visualize the XML video data
Access XML data with objects
From XML elements to PHP objects
Drill into XML data with objects
Not without a namespace!
Fang sightings are on the rise
Lay out videos for viewing
Format video data for display
Your PHP & MySQL Toolbox
The End.
Appendix i: Leftovers: The Top Ten Topics (We Didn't Cover)
#1. Retrofit this book for PHP4 and mysql functions
#2. User permissions in MySQL
#3. Error reporting for MySQL
#4. Exception handling PHP errors
#4. Exception handling PHP errors (cont.)
#5. Object-oriented PHP
#5. Object-oriented PHP (cont.)
So two big advantages of using Object Oriented PHP are:
#6. Securing your PHP application
#6. Securing your PHP application (cont.)
#7. Protect your app from cross-site scripting
#7. Protect your app from cross-site scripting (cont.)
Validate everything
Built-in PHP functions can help
Data is guilty until proven innocent
#8. Operator precedence
#9. What's the difference between PHP 5 and PHP 6
More Unicode support
#9. What's the difference between PHP 5 and PHP 6 (cont.)
OO refinements, XML support, and other changes
#10. Reusing other people's PHP
Drupal
phpBB
Coppermine Gallery
WordPress
Appendix ii: Set Up a Development Environment: A Place to Play
Create a PHP development environment
Find out what you have
Do you have a web server?
Do you have PHP? Which version?
Do you have MySQL? Which version?
Start with the Web Server
Apache installation... concluded
PHP installation
PHP installation steps
PHP installation steps... concluded
Installing MySQL
Instructions and Troubleshooting
Steps to Install MySQL on Windows
Download your installer
Pick a destination folder
Click "Install" and you're done!
Enabling PHP on Mac OS X
Steps to Install MySQL on Mac OS X
Moving from production to a live site
Dump your data (and your tables)
Prepare to use your dumped data
Move dumped data to the live server
Connect to the live server
Appendix iii: Extend Your PHP: Get Even More
Extending your PHP
If you're using Windows, you're in luck
And on the Mac...
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