Pro PHP and jQuery by Jason Lengstorf.pdf - Computer Science ...

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222 CHAPTER 6 ■ PASSWORD PROTECTION SENSITIVE ACTIONS AND AREAS if ( $_POST['token']==$_SESSION['token'] && isset($actions[$_POST['action']]) ) { $use_array = $actions[$_POST['action']]; $obj = new $use_array['object']($dbo); if ( TRUE === $msg=$obj->$use_array['method']() ) { header($use_array['header']); exit; } else { // If an error occured, output it and end execution die ( $msg ); } } else { // Redirect to the main index if the token/action is invalid header("Location: ../../"); exit; } function __autoload($class_name) { $filename = '../../../sys/class/class.' . strtolower($class_name) . '.inc.php'; if ( file_exists($filename) ) { include_once $filename; } } ?> Save this file, then navigate to http://localhost/, and click the Log Out button at the bottom of the calendar. Clicking this button causes the message below the calendar to now read, “Logged Out!” (see Figure 6-8).
Figure 6-8. Clicking the Log Out button removes the user data from the session CHAPTER 6 ■ PASSWORD PROTECTION SENSITIVE ACTIONS AND AREAS ■ Note Now that you know the login is working, remove the Logged In!/Logged Out! message logic and the paragraph tags that enclose it from index.php. Displaying Admin Tools Only to Administrators Your users can log in and log out; the last steps you need to take are to make sure that all actions and options that require administrative access are only shown to users who are logged in. Showing Admin Options to Administrators The buttons for adding and editing events should not be displayed unless a user is logged in. To perform this check, you need to modify both the _adminGeneralOptions() and _adminEntryOptions() methods in the Calendar class. 223
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THE EXPERT’S VOICE ® IN OPEN SOU
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ii Pro PHP and jQuery Copyright ©
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iv Contents at a Glance ■About th
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vi ■ CONTENTS Understanding jQuer
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viii ■ CONTENTS Summary .........
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x ■ CONTENTS ■Chapter 9: Perfor
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xii About the Author ■ Jason Leng
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xiv Acknowledgments I feel like I s
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C H A P T E R 1 ■ ■ ■ Introdu
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CHAPTER 1 ■ INTRODUCING JQUERY Th
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SETTING UP A LOCAL TESTING ENVIRONM
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google.load("jquery", "1.4.2");
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Basic Selectors CHAPTER 1 ■ INTRO
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Only one paragraph in our document
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$(".foo+p"); CHAPTER 1 ■ INTRODUC
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$("p:odd"); [ p.foo, p#bar ] Select
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$("p:parent"); [ p, p.foo, p, p#bar
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which returns the following in the
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Selecting Only Enabled or Disabled
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26 CHAPTER 2 ■ COMMON JQUERY ACTI
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C H A P T E R 3 ■ ■ ■ Object-
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$obj = new MyClass; var_dump($obj);
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CHAPTER 3 ■ OBJECT-ORIENTED PROGR
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$obj = new MyClass; // Get the valu
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} public function setProperty($newv
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} } return $this->getProperty(); pu
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Create a new object $newobj = new M
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} } // Create a new object $newobj
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Private Properties and Methods CHAP
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} public function __construct() { e
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*/ CHAPTER 3 ■ OBJECT-ORIENTED PR
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Ease of Implementation CHAPTER 3
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C H A P T E R 4 ■ ■ ■ Build a
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CHAPTER 4 ■ BUILD AN EVENTS CALEN
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# # DocumentRoot: The directory out
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CHAPTER 4 ■ BUILD AN EVENTS CALEN
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} ?> } } } CHAPTER 4 ■ BUILD AN E
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■ Note For the sake of brevity, D
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} ?> CHAPTER 4 ■ BUILD AN EVENTS
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} ?> } include_once $filename; CHAP
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private $_startDay; public function
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138 CHAPTER 4 ■ BUILD AN EVENTS C
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168 CHAPTER 5 ■ ADD CONTROLS TO C
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170 CHAPTER 5 ■ ADD CONTROLS TO C
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272 CHAPTER 8 ■ EDITING THE CALEN
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P A R T 4 ■ ■ ■ Advancing jQu
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312 CHAPTER 9 ■ PERFORMING FORM V
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C H A P T E R 10 ■ ■ ■ Extend
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$.validDate = function(date, option
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Modifying the Initialization Script
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Adding Methods to jQuery CHAPTER 10
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over, then returns it to its origin
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CHAPTER 10■ EXTENDING JQUERY ■
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Defines default values for the plug
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}); // Loads the event data from th
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■ ■ ■ Index ■ Special Chara
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■ C Calendar app JavaScript initi
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saving new calendar events in addin
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:eq( ) method, 17, 20, 26-27 equals
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eginning of string, 324 character c
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asic selectors in by class name, 12
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.die( ) method, 75-76 .error( ) met
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.parents( ) method, 33 .parentsUnti
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overview, 328 regex pattern to vali
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