PHP for Web Designers: Exercise Files

Chapter 1: Introduction to PHP

• Video 01_01: How PHP makes pages dynamic
  • JavaScript accordion
  • Date range generated by PHP
  • Current time generated by PHP
  • Current time constantly updated by JavaScript
  • Conditional display after form submission
• Video 01_02: How to use PHP in a web page
  • File containing only PHP (date range)
  • PHP code embedded in HTML (current day)
• Video 01_04: Storing numbers and text in variables
  • Start file
  • Values stored in variables
• Video 01_05: Displaying the values of number and text variables
  • Start file
  • Displaying values with echo, print, and shorthand tag
• Video 01_06: Using functions to manipulate values
  • Start file
  • Using a function to convert text to uppercase
• Video 01_07: Adding comments to PHP scripts
  • Start file
  • Different comment styles in use

Chapter 2: Using Server-Side Includes for Common Page Elements

• Video 02_01: What are server-side includes?
  • Example of server-side include
• Video 02_02: Deciding which include command to use
  • Missing file with include
  • Missing file with require

Chapter 3: Using Conditions to Change Page Output

• Video 03_02: Changing output depending on the current time
  • Start file
  • Greeting according to the time of day
• Video 03_03: Adjusting the server's time zone
  • Start file
  • Changing the time zone with date_default_timezone_set()

Chapter 4: Working with Multiple Values in Arrays and Loops

• Video 04_01: Storing multiple values in a variable as an array
  • Start file
  • Original and shorthand array syntax
• Video 04_02: Inspecting an array's elements
  • Start file
  • Using print_r() to inspect array
• Video 04_05: Displaying an array as a comma-separated list
  • Start file
  • Using implode() to convert an array to a string
• Video 04_06: Looping through an array's values
  • Start file
  • Using a foreach loop to display array values
• Video 04_07: Labeling array elements
  • Start file
  • Associative array
• Video 04_08: Looping through an array's labels and values
  • Start file
  • Using foreach to loop through an array's keys and values
• Video 04_09: Finding if an element exists in an array
  • Start file
  • Using in_array() to find an array element

Chapter 5: Getting User Input from a Form

• Video 05_01: Getting form input sent by the POST method
  • Start file
  • Inspecting the $_POST array
• Video 05_02: Retrieving values from a URL's query string
  • Start file
  • Using the $_GET array to display a value from a query string
• Video 05_05: Finding and extracting a substring
  • Start file
  • Using strpos() to find a substring and substr() to extract it

Chapter 6: Displaying Content from a Database

• Video 06_04: Repeating output at specific intervals in a loop
  • How modulo division works
  • Finding every fourth item

Chapter 7: Handling Errors

• Video 07_01: Dealing with PHP errors
  • Example of parse (syntax) error
  • Example of include error
  • PHP configuration
  • .htaccess file for Apache
  • .user.ini file
• Video 07_02: Why is my page blank or incomplete?
  • .htaccess file to turn off display_errors
  • Blank file caused by parse (syntax) error
  • Corrected version of blank file
  • Truncated file caused by fatal error
  • Corrected version of truncated file
• Video 07_03: Tracking down parse errors
  • Page with multiple syntax errors
  • Corrected version
• Video 07_04: What to do with "failed to open stream"
  • File with two "failed stream" errors
  • Corrected version
• Video 07_05: What does "headers already sent" mean?
  • .htaccess file to turn off output_buffering
  • Build-a-bouquet
• Video 07_06: What does undefined index, variable, or constant mean?
  • Page with undefined variable and index
• Video 07_07: What on earth is T_ENCAPSED_AND_WHITE_SPACE?
  • Page with array element in double-quoted string