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336 CHAPTER 9 ■ PERFORMING FORM VALIDATION WITH REGULAR EXPRESSIONS } { } /* * Cast the event ID as an integer for security */ $id = (int) $_POST['event_id']; $sql = "UPDATE èvents` SET èvent_title`=:title, èvent_desc`=:description, èvent_start`=:start, èvent_end`=:end WHERE èvent_id`=$id"; /* * Execute the create or edit query after binding the data */ try { $stmt = $this->db->prepare($sql); $stmt->bindParam(":title", $title, PDO::PARAM_STR); $stmt->bindParam(":description", $desc, PDO::PARAM_STR); $stmt->bindParam(":start", $start, PDO::PARAM_STR); $stmt->bindParam(":end", $end, PDO::PARAM_STR); $stmt->execute(); $stmt->closeCursor(); /* * Returns the ID of the event */ return $this->db->lastInsertId(); } catch ( Exception $e ) { return $e->getMessage(); } public function confirmDelete($id) {...} private function _validDate($date) {...} private function _loadEventData($id=NULL) {...} private function _createEventObj() {...} private function _loadEventById($id) {...} private function _adminGeneralOptions() {...} private function _adminEntryOptions($id) {...}
} ?> CHAPTER 9 ■ PERFORMING FORM VALIDATION WITH REGULAR EXPRESSIONS You can test the validation by entering a bad entry into the form at http://localhost/admin.php (see Figure 9-22). Figure 9-22. An entry with bad date values that should fail validation ■ Note You use http://localhost/admin.php because the only reason your server-side validation will be invoked is if the user has JavaScript disabled. In that case, the modal windows would not function, and the user would be brought to this form. In situations where JavaScript is enabled, the server-side acts as a double-check and an additional security measure against mischievous users. After this form is submitted, the app will simply output the error message and die (see Figure 9-23). The calendar application is designed for users with JavaScript enabled; you use this approach to prevent the app from displaying errors. 337
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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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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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Page 325: P A R T 4 ■ ■ ■ Advancing jQu
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Page 361 and 362: C H A P T E R 10 ■ ■ ■ Extend
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Page 367 and 368: Adding Methods to jQuery CHAPTER 10
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