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Monday, July 7th, 2008 at 12:01 am

Adobe Dreamweaver CS5 with PHP: Validate data entered into the server and the max tutorial

In this lesson, you can:

Install and configure Zend Framework site specific code hints
Modify a database table to add a unique index and additional columns
Validate user input on the server with Zend_Validate
Preserving user input and display error messages when input fails validation
Create reusable code with the developer of Dreamweaver server behavior
Verify that the duplicate usernames
Insert user input into a database with Zend_Db
Create an access system Zend_Auth

Approximate

This lesson lasts approximately 3 hours to complete.

Lesson Files

Media Files:

styles / Users.css

Styles / users_wider.css

From Archives:

lesson07/start/add_user.php

lesson07/start/login.php

lesson07/start/members_only.php

Completed Files:

lesson07/completed/add_user.php

lesson07/completed/add_user01.php

lesson07/completed/add_user02.php

lesson07/completed/add_user03.php

lesson07/completed/login.php

lesson07/completed/members_only.php

lesson07/completed/scripts/library.php

lesson07/completed/scripts/library_magic_quotes.php

lesson07/completed/scripts/restrict_access.php

lesson07/completed/scripts/user_authentication.php

lesson07/completed/scripts/user_authentication01.php

lesson07/completed/scripts/user_registration.php

lesson07/completed/scripts/user_registration01.php

lesson07/completed/scripts/user_registration02.php

lesson07/completed/scripts/user_registration03.php

Use JavaScript for validation is not enough by itself, since only takes a few seconds to disable JavaScript in your browser, which makes the validation script useless. Before introducing user input in a database, you must validate the server with a server side language like PHP.

In this lesson, with the help of a powerful third party script library Zend Framework, we will create a system robust user record that validates data entered into the server. This is to write your own PHP code instead of relying on Dreamweaver to create that. Any inconvenience which is more than offset by increased functionality, and the process is simplified suggestions for site-specific code.

You can also use the Dreamweaver Server Behavior Builder to accelerate the insertion of frequently used PHP code.

Figure 1 The registration form alerts the user for errors before inserting data into the database.

The introduction of Zend Framework

Zend Framework (ZF) is a large code library PHP scripts open. The "minimal" version of ZF 1.10 consists of more than 2,700 files on nearly 500 folders, and more than 22 MB in size. Of course, the size is not everything. In fact, you might wonder why you need so many files to do some basic tasks such as inserting and updating records in a database data, uploading files, and emails sent.

Mark provides a wide range of options, many of whom may never use. For example, ZF has 14 different components that access to e-commerce services from Amazon.com. Most developers do not use them, but they are essential if you have an Amazon affiliate account. Instead of writing a script of mind-numbing complexity, you can check the Amazon database with only a few lines of code.

Most tutorials are supposed to use ZF to build a web application using the Model-View-Controller (MVC) design pattern, which divides the management of data (the model), the output (demand), and conditional logic (controller) between the scripts separately. Unless you have considerable experience in PHP, MVC design pattern can be confusing, so this book has a different approach, offering a smoother introduction to ZF.

ZF is a framework for loosely coupled, meaning that each part is designed to work with minimal dependence on other parties. You can use only a few components without having to learn the entire frame. But if you later decide to adopt MVC, his knowledge of the main components of ZF will accelerate the transition.

These are the main components to be used in the remaining classes:

Zend_Auth to check user credentials
Zend_Db to communicate with a database
Zend_File to upload files
Zend_Loader to load classes automatically ZF
Zend_Mail send emails and attachments
Zend_Paginator to page through a long series of database results
Zend_Service_ReCaptcha to prevent entry spam
Zend_Validate to validate user input

The exercises continue using MySQL, but Zend_Db makes the code more flexible. Changing a line or two lets you switch to Microsoft SQL Server, PostgreSQL or other database system.

ZF has a number of other factors in its favor:

Its main sponsor is Zend Technologies, the company founded and run by the PHP core contributor.
The major software companies, including Adobe, Google and Microsoft, have contributed major components or features. Adobe contributed Zend_Amf, which acts as a bridge between PHP and Flash Player, using format binary Action Message (AMF).
ZF has been designed from the outset to use PHP 5 objects. Many frames were originally designed for compatibility with PHP 4, which is less efficient.
The next major version of ZF is being designed to improve interoperability with other frameworks such as Symfony.

COUNCIL

ZF is an object-oriented framework. If you are not familiar with PHP objects, is now a good time to review "the objects they use, and Resources" in Lesson 3.

The installation of the Zend Framework

The CD that accompanies this book contains ZendFramework-1.10.6-minimal.zip. You can also download the latest version to choose the minimum version of ZF, which contains all the files you need. Some download links require that you establish an account of Zend. ZF, it is free and no obligation.

ZF To install, simply unzip the file to a convenient location on the hard disk drive. It's more efficient to locate outside the site root phpcs5, making it accessible to all sites in Dreamweaver. Create a folder called php_library at the top level of your C drive in Windows or in your home folder on a Mac, and ZF decompress it.

Two folders, paper and library, located within the folder. The frame is in a subfolder of the library called Zend. Each component has a corresponding file. Zend PHP folder and a folder of its own.

No need to open the files, but if you do, you'll see that each file is well commented, which partly explains why the frame is so great. As you gain more experience, you'll discover plenty of useful information in these comments. Sometimes it helps to explain the characteristics that are not fully documented.

Figure 2

COUNCIL

ZF documentation in maximum tutorial is extensive and contains many examples. Unfortunately, much of it is written on the assumption that you are using the MVC design pattern. Also is expected to have a solid knowledge of PHP. However, efforts have been made to improve it.

The creation of site-specific suggestions for ZF code

In Lesson 4, you learned how to create site-specific code hints for WordPress, Drupal and Joomla! Dreamweaver automatically recognizes the structure of these CMS. With other frameworks, such as ZF, which tell Dreamweaver where to find the files you want to explore and to generate suggestions for the code. You do not need suggestions WordPress Code again in this book, so the following instructions show how to set up a separate structure for clues ZF. This replaces the existing version of the site dw_php_codehinting.config phpcs5, but you can easily switch between different sets of code hints selected in the menu structure of the site-specific Councils Code dialog box.

COUNCIL

You can also follow these steps in the final section of my Adobe TV video on the PHP code hints in the tutorial max .

In the Dreamweaver Files panel, select the site CS5 PHP.
Make sure the active file in the document window is in place current, or close all files.
Choose Site> Suggestions for specific code.
Make sure the menu structure <New of blank> set.
Click the "Select sub-root folder" text box next to the Sub-root, and go the library folder one level above the folder Zend.

NOTE

The following sub-folder must be at least a higher level that all files or folders to scan.

Click Select. Because the folder is outside the root of the site, Dreamweaver displays the following alert.

Figure 3

Just click OK.

Click the plus sign (+) button on the file (s) area to open the Add File / Folder dialog box.

Figure 4

Click "Choose Folder" icon beside the text box file / folder and select the Zend folder. Dreamweaver says the Recursive checkbox to scan all subfolders. If you select the Zend folder, code hints are enabled for all frame. Because ZF contains many files and folders, scan them all not a good idea, so let's check box is not selected. For the scanning more efficient, click the button on the area of the extensions, and type. Tutorial peak in the highlighted section. This tells Dreamweaver to discuss only. Php files.

Figure 5

Click Add and repeat steps 7-10 to add the following folders, all of which are subfolders of Zend: Auth, Captcha, Db, File, charger, email, pager, and validate. When you set each folder, select the Recursive checkbox and add. Php extension list.

Also need to add the service portfolio and one of its subfolders, ReCaptcha. The folder contains subfolders of service, so select the Recursive checkbox just to the subfolder ReCaptcha.

Figure 6

If you forget to select the Recursive checkbox and add the. php file name, you can change options using check box and a button at the bottom of the dialog box site-specific suggestions for the code.

Save the settings by Click on the icon of the structure Save on the top right of the dialog box. Zend type in the Name text box (you can use any name, except custom Drupal, Joomla or WordPress), and click Save. Click OK to close the specific site of Code Hints dialog box. This inserts a file called dw_php_codehinting.config in the site root. Dreamweaver uses this folder to explore the ZF and create suggestions for the code of the selected components.

COUNCIL

Folders are scanned in reverse alphabetical order each time you start Dreamweaver. This process should not delay the program, but if you select the entire frame, which can take several minutes before all the suggestions for the code is ready for use.

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