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

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106 CHAPTER 3 ■ OBJECT-ORIENTED PROGRAMMING } } $this->prop1 = $newval; protected function getProperty() { return $this->prop1 . ""; } class MyOtherClass extends MyClass { public function __construct() { parent::__construct(); echo "A new constructor in " . __CLASS__ . "."; } } public function newMethod() { echo "From a new method in " . __CLASS__ . "."; } public function callProtected() { return $this->getProperty(); } // Create a new object $newobj = new MyOtherClass; // Call the protected method from within a public method echo $newobj->callProtected(); ?> This generates the desired result: The class "MyClass" was initiated! A new constructor in MyOtherClass. I'm a class property! The class "MyClass" was destroyed.
Private Properties and Methods CHAPTER 3 ■ OBJECT-ORIENTED PROGRAMMING A property or method declared private is accessible only from within the class that defines it. This means that even if a new class extends the class that defines a private property, that property or method will not be available at all within the child class. To demonstrate this, declare getProperty() as private in MyClass, and attempt to call callProtected() from MyOtherClass:
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THE EXPERT’S VOICE ® IN OPEN SOU
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ii Pro PHP and jQuery Copyright ©
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iv Contents at a Glance ■About th
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vi ■ CONTENTS Understanding jQuer
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viii ■ CONTENTS Summary .........
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x ■ CONTENTS ■Chapter 9: Perfor
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xii About the Author ■ Jason Leng
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xiv Acknowledgments I feel like I s
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C H A P T E R 1 ■ ■ ■ Introdu
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CHAPTER 1 ■ INTRODUCING JQUERY Th
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SETTING UP A LOCAL TESTING ENVIRONM
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google.load("jquery", "1.4.2");
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Basic Selectors CHAPTER 1 ■ INTRO
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Only one paragraph in our document
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$(".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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Page 103 and 104: C H A P T E R 3 ■ ■ ■ Object-
Page 105 and 106: $obj = new MyClass; var_dump($obj);
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Page 111 and 112: $obj = new MyClass; // Get the valu
Page 113 and 114: } public function setProperty($newv
Page 117 and 118: } } return $this->getProperty(); pu
Page 119 and 120: Create a new object $newobj = new M
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Page 135 and 136: C H A P T E R 4 ■ ■ ■ Build a
Page 137 and 138: CHAPTER 4 ■ BUILD AN EVENTS CALEN
Page 139 and 140: # # DocumentRoot: The directory out
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Page 143 and 144: } ?> } } } CHAPTER 4 ■ BUILD AN E
Page 145 and 146: ■ Note For the sake of brevity, D
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Page 149 and 150: } ?> } include_once $filename; CHAP
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156 CHAPTER 4 ■ BUILD AN EVENTS C
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168 CHAPTER 5 ■ ADD CONTROLS TO C
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200 CHAPTER 6 ■ PASSWORD PROTECTI
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P A R T 3 ■ ■ ■ Combining jQu
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236 CHAPTER 7 ■ ENHANCING THE USE
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264 CHAPTER 8 ■ EDITING THE CALEN
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P A R T 4 ■ ■ ■ Advancing jQu
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312 CHAPTER 9 ■ PERFORMING FORM V
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C H A P T E R 10 ■ ■ ■ Extend
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$.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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