PHP & MySQL: The Missing Manual. 2nd Edition

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• PHP & MySQL: The Missing Manual, Second Edition
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• The Missing Credits
  • About the Author
  • About the Creative Team
  • Acknowledgments
  • The Missing Manual Series
• Introduction
  • What PHP and MySQL Can Do
  • What Is PHP?
    • What Is PHP Like?
    • PHP Is All About the Web
    • JavaScript Is Loose, PHP IsLess So
    • PHP Is Interpreted
    • PHP Doesnt Run in the Browser
  • What Is MySQL?
  • About This Book
    • Macintosh and Windows
    • FTP: Its Critical
    • About the Outline
  • About the Online Resources
    • Missing CD
    • Registration
    • Feedback
    • Errata
  • Safari Books Online
• 1. PHP and MySQL Basics
  • 1. PHP: What, Why, and Where?
    • PHP Comes in Two Flavors: Local and Remote
      • HTML and CSS Run Within a Web Browser
      • JavaScript Adds Complexity, but Not Software
      • PHP Is Not Part of Your Browser
      • Write Anywhere, Run Where Theres PHP
    • PHP: Going Local
      • PHP on the Windows-Based Computers (WampServer Installation)
      • PHP on the Mac (Default Installation)
      • PHP on the Mac (MAMP Installation)
      • Get Out Your Text Editor
    • Write Your First Program
    • Run Your First Program
    • But Wheres That Web Server?
      • The PHP Interpreter Is a Program You Can Run
      • But, the HTML Is Coming
  • 2. PHP Meets HTML
    • Script or HTML?
      • Determination by Extension
      • HTML Is Treated as HTML
      • PHP Is Not HTML (by Extension)
      • PHP Can Be HTMLby Response
    • PHP Talks Back
      • Write Another PHP Script
      • Variables Vary
      • Check Things Out Locally
    • Run PHP Scripts Remotely
      • Upload your HTML, CSS, and PHP
      • Run Your Second Program
      • Welcome to Programming!
  • 3. PHP Syntax: Weird and Wonderful
    • Get Information from a Web Form
      • Accessing Request Parameters Directly
      • Create Your Own Variables
    • Working with Text in PHP
      • Combine Text
      • Searching Within Text
      • Changing Text
      • Trim and Replace Text
        • Removing Extra Whitespace by Using Trim()
        • Replacing Characters in Text by Using Str_replace()
    • The $_REQUEST Variable Is an Array
      • Arrays Can Hold Multiple Values
      • PHP Gives You An Array of Request Information
    • What Do You Do with User Information?
  • 4. MySQL and SQL: Database and Language
    • What Is a Database?
      • Databases Are Persistent
      • Databases Are All about Structure
      • Good Databases Are Relational
    • Installing MySQL
      • The mysql Console Program: Your New Best Friend
      • Run the mysql Tool on WampServer
        • Find the MySQL Command-Line Program
        • Give mysql the Right User and Password
      • Run the mysql Tool on MAMP
        • Set Up mysql for Your User Profile
        • Give mysql the Right User and Password
      • Run Your First SQL Query
    • SQL Is a Language for Talking to Databases
      • Logging In to Your Web Servers Database
      • Selecting a Database with USE
      • Using CREATE to Make Tables
      • Using DROP to Delete Tables
      • INSERT a Few Rows
      • Using SELECT for the Grand Finale
• 2. Dynamic Web Pages
  • 5. Connecting PHP to MySQL
    • Writing a Simple PHP Connection Script
      • Connect to a MySQL Database
      • Select the Database with PHP
      • Viewing Your Databases Tables by Using SHOW
        • Handling Errors by Determining If Your Results are Not
        • Print Out Your SQL Results
    • Cleaning Up Your Code with Multiple Files
      • Replacing Hand-Typed Values with Variables
      • Abstracting Important Values into a Separate File
      • Variables Vary, but Constants Stay Constant
    • Building a Basic SQL Query Runner
      • Creating an HTML Form with a Big Empty Box
      • Connecting to Your Database (Again)
      • Running Your Users SQL Query (Again)
      • Entering Your First Web-Based Query
      • Handling Queries That Dont SELECT Information
      • Dealing with Humans
      • Avoid Changing User Input Whenever Possible
  • 6. Regular Expressions
    • String Matching, Double-Time
      • A Simple String Searcher
      • Search for One StringOr Another
      • Getting into Position
      • Ditch trim and strtoupper
      • Searching for Sets of Characters
      • Regular Expressions: To Infinity and Beyond
      • A Little Cleanup: Remove the echo Statements
  • 7. Generating Dynamic Web Pages
    • Revisiting a Users Information
    • Planning Your Database Tables
      • Good Database Tables Have ID Columns
      • Auto Increment Is Your Friend
        • IDs and Primary Keys are Good Bedfellows
      • Adding Constraints to Your Database
    • Saving a Users Information
      • Building Your SQL Query
      • Inserting a User
      • A First Pass at Confirmation
      • Users are Users, Not Programmers
    • Show Me the User
      • Creating a Mockup of a User Profile Page
      • Changing a Tables Structure by Using ALTER
      • Building Your Script: First Pass
      • Using SELECT to Retrieve a User from Your Database
      • Pulling Values from a SQL Query Result
      • Passing a User ID into show_user.php
    • Revisiting (and Redirecting) the Create User Script
      • Updating Your User Signup Form
      • Updating Your User Creation Script
      • Rounding Things Out by Using Regular Expressions (Again)
• 3. From Web Pages to Web Applications
  • 8. When Things Go Wrong (and They Will)
    • Planning Your Error Pages
      • What Should Users See?
        • Tell Your Users that a Problem has Occurred
        • Bring Down the Panic Level in the Process
      • Know When to Say When
    • Finding a Middle Ground for Error Pages with PHP
      • Creating a PHP Error Page
      • Testing Your Solution
      • Expect the Unexpected
      • Welcome to Security and Phishing
        • Phishing and Subtle Redirection
        • The Dangers of Request Parameters
    • Add Debugging to Your Application
      • Whos Using This App, Anyway?
      • Now You See Me, Now You Dont
      • Moving from require to require_once
    • Redirecting On Error
      • Update connect.php to show_user.php
      • Simplifying and Abstracting Your Code
      • redirect Is Path-Insensitive
  • 9. Handling Images and Complexity
    • Images Are Just Files
      • HTML Forms Can Set the Stage
      • Uploading a Users Image to Your Server
        • Set Up Some Helper Variables
        • Did the File Upload with Any Errors?
        • Is this Really an Uploaded File?
        • Is the Uploaded File Really an Image?
        • Move the File to a Permanent Location
      • Storing the Image Location in the Database
        • Create a New Database Column
        • Insert the Image Path Into Your Table
        • Check Your Work
    • Images Are for Viewing
      • SELECTing the Image and Displaying It
      • Converting File System Paths to URLs
      • Displaying Your Users Image: Take Two
    • And Now for Something Completely Different
  • 10. Binary Objects and Image Loading
    • Storing Different Objects in Different Tables
    • Inserting a Raw Image into a Table
      • Beware: getimagesize Doesnt Return a File Size
      • The file_get_contents Function Does What You Think It Does
      • INSERTing the Image
    • Your Binary Data Isnt Safe to InsertYet
      • Printing a String to a Variable
      • Getting the Correct ID Before Redirecting
    • Connecting Users and Images
      • Inserting an Image and then Inserting a User
      • Joining Tables by Using WHERE
        • Connect Your Tables Through Common Columns
        • Alias Your Tables (and Columns)
    • Show Me the Image!
      • Displaying an Image
        • Make a Game Plan for Your Script
        • Get the Image ID
        • Build and Run a Select Query
        • Get the Results, Get the Image, and Deal with Potential Errors
        • Tell the Browser Whats Coming
        • Send the Image Data
      • Handling Errors with try and catch
      • Test, Test, Always Test
    • Embedding an Image Is Just Viewing an Image
      • All You Need Is an Image ID
      • A Script Can Be an Image src
    • So, Which Approach Is Best?
      • OK, If You Insist on an Answer
  • 11. Listing, Iterating, and Administrating
    • Thinking about What You Need as an Admin
      • (User Interface) Brevity Is Still the Soul of Wit
      • Wish Lists Are Good, Too
    • Listing All Your Users
      • SELECTing What You Need (Now)
      • Building a Simple Admin Page
      • Iterating Over Your Array
    • Deleting a User
      • Surveying the Individual Components
      • Putting It All Together
      • Deleting Users Shouldnt Be Magical
        • Start with a Little Javascript
        • Finish with a Change in Linking
    • Talking Back to Your Users
      • redirect Has Some Limitations
      • JavaScript alert Redux
        • An All-Javascript Approach
        • Your PHP Controls your Output
      • alert Is Interruptive
    • Standardizing on Messaging
      • Building a New Utility Function for Display
      • Duplicate Code Is a Problem Waiting to Happen
      • View and Display Code Belongs Together
    • Integrating Utilities, Views, and Messages
      • Calling Repeated Code from a View Script
      • Flexible Functions Are Better Functions
        • Use Default Argument Values in Display_Messages
        • Output a Standard Header with Heredoc
        • Update Your Script(s) to Use Display_Head
      • Standardizing and Consolidating Messaging in the View
      • Building a Function to Call Two Functions
      • Just Pass That Information Along
• 4. Security and the Real World
  • 12. Authentication and Authorization
    • Basic Authentication
      • Using HTTP Headers for Basic Authentication
      • Basic Authentication IsWell, Basic
      • The Worst Authentication Ever
      • Getting Your Users Credentials
      • Cancel Is Not a Valid Means of Authentication
      • Getting Your Users Credentials
    • Abstracting Whats the Same
      • Another Utility Script: authorize.php
    • Passwords Dont Belong in PHP Scripts
      • Updating the users Table
      • Dealing with Newly Invalid Data
      • Getting an Initial User Name and Password
      • Inserting the User Name and Password
      • Connect authorize.php to Your users Table
    • Passwords Create Security, But Should Be Secure
      • Encrypting Text by Using the crypt Function
      • crypt Is One-Way Encryption
      • Encryption Uses Salt
  • 13. Cookies, Sign-Ins, and Ditching Crummy Pop-Ups
    • Moving Beyond Basic Authentication
      • Starting with a Landing Page
      • Taking Control of User Sign Ins
      • From HTTP Authentication to Cookies
        • What is a Cookie?
        • Create and Retrieve Cookies
    • Logging In with Cookies
      • Determining Whether the User Is Already Signed In
      • Is the User Trying to Sign In?
      • Displaying the Page
      • Redirecting as Needed
      • Logging In the User
      • Blank Pages and Expiring Cookies
      • Errors Arent Always Interruptive
      • An Option for Repeat Attempts
    • Adding Context-Specific Menus
      • Putting a Menu into Place
      • From HTML to Scripts
        • Any HTML File Can Be Converted to PHP
        • Challenge: Be Self-Referential with User Creation
      • Logging Users Out
      • Requiring the Cookie to Be Set
  • 14. Authorization and Sessions
    • Modeling Groups in Your Database
      • Adding a Groups Table
      • The Many-to-Many Relationship
        • One-to-One, One-to-Many, Many-to-Many
        • Joins are Best Done with IDS
        • Use a Join Table to Connect Users with Groups
      • Testing Group Membership
    • Checking for Group Membership
      • authorize.php Needs a Function
      • Take in a List of Groups
      • Iterating Over Each Group
      • Allow, Deny, Redirect
    • Group-Specific Menus
    • Entering Browser Sessions
      • Sessions Are Server-Side
      • Sessions Must Be Started
      • From $_COOKIE to $_SESSION
      • Sessions Must Be Restarted, Too
      • $_REQUEST Doesnt Include $_SESSION
      • Menu, Anyone?
      • And Then, Sign Out
    • Memory Lane: Remember That Phishing Problem?
    • Why Would You Ever Use Cookies?
• 5. Appendixes
  • A. Installing PHP on Windows Without WAMP
    • Installing PHP from www.php.net
  • B. Installing MySQL Without MAMP or WAMP
    • Installing MySQL
      • MySQL on Windows
      • MySQL on Mac OS X
• Index
• About the Author
• SPECIAL OFFER: Upgrade this ebook with OReilly
• Copyright

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