Learning PHP

Index

Symbols

• ! (negation) operator, Building Complicated Decisions
• != (not equal) operator, Building Complicated Decisions
• " " (quotation marks, double)
  • debugging, Fixing Parse Errors
  • interpolating array elements in double-quoted strings, Modifying Arrays
  • string delimiter in PHP, Defining Text Strings
• # (octothorpe) character, introducing comments, Comments
• $ (dollar sign), denoting variables, PHP in Action
• $GLOBALS array, Understanding Variable Scope
  • modifying global variable with, Understanding Variable Scope
  • recommended use versus global keyword, Understanding Variable Scope
• $params array, Simple URL Access with File Functions
• $this variable, Object Basics
  • example of, Object Basics
• $_COOKIE array, Working with Cookies, Working with Cookies
• $_GET array, Accessing Form Parameters
• $_POST array, Exchanging Information with Users: Making Web Forms, Accessing Form Parameters
• $_SERVER array, Exchanging Information with Users: Making Web Forms
  • accessing incoming request headers, Serving API Requests
  • argv, Writing Command-Line PHP Programs
  • HTTPS, Serving API Requests
  • HTTP_HOST, Serving API Requests
  • PHP_SELF element, Exchanging Information with Users: Making Web Forms
  • REQUEST_METHOD element, Exchanging Information with Users: Making Web Forms
  • REQUEST_URI, Serving API Requests
  • useful elements, Useful Server Variables
• $_SESSION array, Storing and Retrieving Information
  • removing a key and value from, Login and User Identification
  • usernames in, Login and User Identification
• % (percent sign)
  • beginning format string rules ...