PHP Basics

1
PHP Basics
Session 02
2
PHP Basics
Tonights agenda

• Conditionals
• Loops
• Includes
• Super global variables
• Simple validation

3
Conditionals
Because it all depends

• if
• elseif
• else

4
Loops
Keep it coming

• While
• For
• Foreach

5
Includes
Weve gotta keep em separated

• include v. require (and require_once, etc.)
• include(filename.inc.php)
• naming conventions

6
Super Global Variables
Kung POW!

• _SERVER
• HTTP_HOST
• HTTP_USER_AGENT
• HTTP_REFERER
• DOCUMENT_ROOT
• SCRIPT_NAME
• PHP_SELF
• _COOKIE, _FILES,
• GLOBALS, _GET,
• _POST

7
Simple Validation
Hmmm. OK, you can come in

• imaginary form (use variables)
• name, email, message
• check variables not empty
• if variable empty,
• set error message
• if message not blank display confirmation
• if message blank display errors

8
Wrap Up
Getting the hang of this

• Some similarities to JS
• Server stuff is new

Next time Forms