tag:blogger.com,1999:blog-66392027236218284022011-07-30T14:22:43.190-07:00Approved online pharmacy. We accept: Visa, Mastercard, Amex, Diners, JCBMr Proccesnoreply@blogger.comBlogger1541100tag:blogger.com,1999:blog-6639202723621828402.post-62207887008446462022009-08-12T06:43:00.000-07:002010-04-18T08:20:34.141-07:00

All recent major Linux distributions (SUSE, Fedora, Mandriva, and Debian among them) come with support for PHP 5. If your distribution doesn’t support version 5, the easiest solution is to locate and install an updated Red Hat Package Manager (RPM). Otherwise, you will need to download the PHP source code and configure and install PHP your- self. (If you want to install PHP as a static

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Databases are important to any dynamic website. That’s why we’ve had a lot to say about them in this book (too much, someof you may be thinking). However, PHP Data Objects (PDO) can’t be ignored because they are packaged with PHP version 5.1 and higher, and they are “something many of the PHP dev team would like to see as the recommended API for database work.”1PDO is a data-access

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SQLite comes packaged with PHP 5. It has advanced capabilities and a built-in object-oriented (OO) interface. Examining the classes and methods of SQLite is the ostensiblereason for including this chapter—but that’s not the only reason. SQLite is a great addition to PHP, but because MySQL is so entrenched, programmers tend to ignore SQLite.Don’t let the “Lite” in SQLite lead you to

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In Chapter 4, I introduced a simple class called DirectoryItems. You may rememberwhat it does, but you probably can’t remem- ber the specific methods. With a user-defined class,looking up forgotten methods usually means rooting through the class definition file. This can take a long time, especially for large classes. For an internal class you can go to http://php.net to look up the

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So far we have come across the magic meth- ods __construct, __destruct, and __toString,and have discussed them in detail. The remaining magic methods are __autoload,__call, __clone, __get, __set, __sleep, __wakeup, __unset,and __isset.1 As you might expect, they only make sense in the context of object-oriented programming (OOP).The syntactic element common to all magic methods is that they

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There’s nothing quite like the excitement of discovering a new and interesting web- site. But this enthusiasm can quickly wane if,after a few visits, the content of the site hasn’tchanged at all. The primary way of adding new content to a website is by using dynamic, database-driven pages. That’s why we’ve spent so much time discussing MySQL (and will later spend some time on SQLite).

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The previous two chapters introduced a number of new object-oriented program-ming (OOP) concepts. In the interest of clarity, some topics were discussed in depth andothers glossed over. While the content of those chapters is still fresh in your mind, let’s return to some of the topics that were only touched upon briefly, namely abstract classes, the use of the static keyword, and the

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Anyone who has played Monopoly knows that a player’s financial situation can be improved through inheritance. In object-oriented programming (OOP), inheritance can also bring improvement. In this chapter we’ll use inheritance to improve the MySQL classes developed in Chapter 9, by simplifying error trapping and by modifying the behavior of the MySQLResultSet class.Trapping errors is not a job

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The last chapter ended by saying we would create a database class in order to test theversatility of the page navigator. That’s what we’re going to do in this chapter. I noted earlierthat it’s sometimes difficult to identify objects, because often what’s needed is something conceptual rather than something physical and concrete. The database class or classes that we are going to create in

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In this chapter we’ll use the PageNavigatorclass to step through a directory of images reduced on the fly using the ThumbnailImage class. We’ll use all three of the classes you have developed so far:The DirectoryItems class stores a list of filenames of images.The ThumbnailImage class reduces the dimensions of each image.The PageNavigator class steps through these images in an orderly

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When there are a large number of images in a directory, it’s not desirable to displayall of them on one web page because doing so will probably create a very large and long page.Web pages should be of reasonable length and should not take too long to download. Rather than dumping all your images onto one page, use a page navigator to step through them in an orderly fashion. This chapter

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Images are often of unequal dimensions, and their file sizes can vary greatly. Thisinconsistency creates problems when down- loading and displaying a group of images becauseone large image can take up the entire screen, dwarfing smaller images. Also, if image files are large, they can slow downloading to an unacceptable pace.One solution to the problem of inconsistently sized images is to

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Chapter 4 left us with some clear objec- tives. We need to add functionality to the DirectoryItems class, and we need to upgrade itto take advantage of the changes introduced inPHP 5. And that’s exactly what we’ll do in this chapter. We’ll upgrade the syntax of the DirectoryItems class first; then we’ll improve its functionality by adding methods.Keeping in mind that we plan to use the

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Introductory books on object-oriented programming (OOP) often use examples of objects taken from the real world. For example, you may be asked to imagine a “dog” class. We are all familiar with dogs, of course, so it’s relatively easy to describe a dog’s attributes. Most dogs have hair, four legs, and a tail. A dog’s behavior is equally easy to describe. Dogs bark, jump, run, roll over,

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PHP 3 was released in mid-1998. Some basic object-oriented (OO) capabilities wereincluded, more or less as an afterthought, to “provide new ways of accessing arrays.”1 Nosignificant changes were made to the object model when version 4 was released in mid-2000. The basics of object- oriented programming (OOP) were there—you could create a class and single inheritance was supported.With the

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This chapter is aimed at an audience unfamiliar with the basic concepts of object-oriented programming (OOP).The intent is to provide a general overview of OOP with a view toward using PHP effectively. We’ll restrict the discussion to a few basic concepts of OOP as it relates to PHP, though it is sometimes useful to look at other object-oriented (OO) languages such as Java or C++.We’ll

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Creating a web page ain’t what it used to be. Setting up a website today usually meansincorporating numerous technologies, among them (X)HTML, CSS, JavaScript, SQL, and aserver-side scripting language. But that’s not all—a web page also runs within a browser. There are several different browsers, of course, and each behaves differently. Not only that, but different versions of the same

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pache is an open-source Web server. A Web server delivers the files on the Web site to the visitor who wants to see the Web pages.In most cases, you want to get Apache from the Web and install it yourself. Although Apache may already be installed on your computer (because most Linux distributions and Mac OS X include Apache), it’s unlikely to be the latest version. Or Apache may not

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lthough PHP runs on many platforms, I describe installing it onUnix/Linux/ Mac and Windows, which includes the majority of Web sites on the Internet. PHP runs with several Web servers, but these instructions focus mainly on Apache and Internet Information Servers (IIS) because together they power almost 90 percent of the Web sites on the Internet. If you need instructions for other

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lthough MySQL runs on many platforms, I describe how to install it onLinux, Unix, Windows, and Mac, which together account for the major­ ity of Web sites on the Internet. Be sure to read the instructions all the way through before beginning the installation.MySQL can be installed most easily from binaries — precompiled, ready-to- install packages. Binaries are available for most

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guarantee that you will do all the things that I mention in this chapter. It’s not possible to write programs without making these mistakes. The trickis to find out how to recognize them, roll your eyes, say, “Not again,” and then fix them. One error message that you will see many times isParse error: parse error in c:\test.php on line 7This is PHP’s way of saying, “Huh?” It means

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ne of the strongest aspects of PHP is its many built-in functions. In this chapter, I list the PHP functions that I use most often. I describe some ofthem elsewhere in this book, some I only mention in passing, and some I don’t mention at all. These aren’t all the functions, by any means. There are many hundreds of functions in the PHP language. For a complete list of all the func­

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any Web sites require users to log in. Sometimes users can’t view anyWeb pages without entering a password, while sometimes just part of the Web page requires a login. Here are some reasons why you might want to require a user login:The information is secret. You don’t want anyone except a few autho­ rized people to see the information. Or perhaps only your own employ­ ees should see

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nline catalogs are everywhere on the Web. Every business that has products for sale can use an online catalog. Some businesses use onlinecatalogs to sell their products online, and some use them to show the quality and worth of their products to the world. Many customers have come to expect businesses to be online and provide information about their products. Customers often begin

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he previous chapters of this book provide you with the tools that you need to build your Web database application. In Part I, you find out howPHP and MySQL work and how to get access to them. In addition, you dis­ cover what needs to be done to build your application and in what order to do it. In Part II, you find out how to build and use a MySQL database. In Part III, you

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ost Web sites consist of more than one Web page. This includes the static Web pages that you may have developed in the past. With staticWeb pages, users click links to move from one page to the next. Users click a link in one Web page, and a new Web page appears in their browser. When users move from page to page this way, no information is transferred from the first page to the

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HP and MySQL work very well together. This dynamic partnership is what makes PHP and MySQL so attractive for Web database applicationdevelopment. Whether you have a database full of information that you want to make available to users (such as a product catalog) or a database waiting to be filled up by users (for example, a membership database), PHP and MySQL work together to implement your

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HP programs are a series of instructions in a file named with an exten­sion that tells the Web server to look for PHP sections in the file. (The or , but it can be anything that the Webextension is usually.phpserver is configured to expect.) PHP begins at the top of the file and executes each instruction, in order, as it comes to it. Instructions are the building blocks of PHP

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rograms are the application part of your Web database application. Programs perform the tasks. They create and display Web pages, acceptand process information from users, store information in the database, get information out of the database, and perform any other necessary tasks.PHP, the language that you use to write your programs, is a scripting lan­ guage designed specifically

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our data is essential to your Web database application. Storing and/or presenting data are major activities of your Web database application.You have spent valuable time developing your database, and it contains important information entered by you or by your users. You need to protect it. In this chapter, I show you how.Controlling Access to Your DataYou need to control access to the

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fter completing your database design (see Chapter 3 if you haven’t done this yet), you’re ready to turn it into a working database. In this chapter,you find out how to build a database based on your design — and how to move data in and out of it.The database design names the database and defines the tables that make up the database. In order to build the database, you must

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data in MySQL databases and typing in PHP programs. Developmenthas to start with planning. Building the application pieces comes after plan­ning. The development steps are1. Develop a plan, listing the tasks that your application will perform.2. Design the database needed to support your application tasks.3. Build the MySQL database, based on the database design.4. Write the PHP

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fter you decide to use PHP and MySQL, your first task is to get access to them. A work setting already set up for Web application developmentmight be ready and waiting for you with all the tools that you need. On the other hand, it might be part of your job to set up this work setting yourself. Perhaps your job is to create a whole new Web site. In this chapter, I describe the

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o you need to develop an interactive Web site. Perhaps your boss just put you in charge of the company’s online product catalog. Or you wantto develop your own Web business. Or your sister wants to sell her paintings online. Or you volunteered to put up a Web site open only to members of your circus acrobats’ association. Whatever your motivation might be, youcan see that the

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AJAX Drag and DropWhen drag-and-drop capability was first introduced to websites, people looked at it with astonishment. This was really a great feature to provide via your website! Since then, JavaScript has evolved in people's eyes from a "check-out-that-snow-on-my-website" scripting language to a standardized and powerful "do-powerful-stuff-with-it" language.Many frameworks and JavaScript

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AJAX RSS ReaderIn the last few years, the Web has become much more active than it used to be. Today, we see an explosion of new sources of information, such as news sites appearing every day (such as http://www.digg.com and http://www.newsvine.com), and the growing trend of web life— weblogs (every person seems to have a weblog these days).As a natural reaction to this invasion of information,

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AJAX GridData grids have always been one of the areas where web applications have had a serious disadvantage compared to desktop programs. The fact that the page needed a full reload when switching between grid pages, or when updating grid details, harmed the application from a usability point of view. Technically, fully reloading the page has bad effects as well, unnecessarily wasting network

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AJAX Real-Time Charting withSVGScalable Vector Graphics (SVG) is one of the emerging technologies with a good chance of becoming the next "big thing" for web graphics, as was the case with Flash. SVG is a language for defining two-dimensional graphics. SVG isn't necessarily related to web development, but it fits very well into the picture because it complements the features offered naturally by

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AJAX Suggest andAutocompleteSuggest and Autocomplete are popular features implemented in most modern browsers, email clients, source-code editors, word processors, and operating systems. Suggest and Autocomplete are the two sides of the same coin—they go hand in hand. Usually, there is no distinction made between the two of them, but "autocomplete" is used more frequently.Autocomplete refers to

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AJAX ChatWe are living in a world where communication has become very important; there's a real need to be able to communicate quickly and easily with others. Email, phone texting, postal letters, and online chat offer media through which people can exchange ideas in the form of written words. An important aspect when communicating is the responsiveness factor. While emails and letters don't

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AJAX Form ValidationValidating input data is an essential requirement for quality and secure software applications. In the case of web applications, validation is an even more sensitive area, because your application is widely reachable by many users with varying skill sets and intentions.Validation is not something to play with, because invalid data has the potential to harm the application's

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Server-Side Techniques with PHP and MySQLIf AJAX is mainly about building smarter clients, then the servers these clients talk to must be equally smart, otherwise they won't get along very well for too long.In Chapter 2, you only read static text or XML files from the server. In this chapter, we start putting the server side to work, with PHP to generate dynamic output, and MySQL to manipulate

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Client-Side Techniques withSmarter JavaScriptIt is said that one picture is worth a thousand words. And so is a well-written piece of code, we would say. You will get plenty of both, while building the foundations for your future AJAX-enabled applications, in this chapter and the next.Hopefully, the first chapter has developed your interest in AJAX well enough that you will endure a second

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AJAX and the Future ofWeb Applications"Computer, draw a robot!" said my young cousin to the first computer he had ever seen. (Since I had instructed it not to listen to strangers, the computer wasn't receptive to this command.) If you're like me, your first thought would be "how silly" or "how funny"—but this is a mistake. Oureducated and modeled brains have learned how to work with computers to

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Ensuring database availability is a critical skill you need even if your Oracle Database XE instance is used by a small group of developers in your department. Many types of database failures are beyondyour control as a DBA, such as disk failures, network failures, and user errors. This emphasizes the need to prepare in advance for all of these potential failures after assessing the cost of

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Rarely is your database self-contained. You may have to create a spreadsheet for the accounting department so it can merge data in the database with its existing spreadsheets, or you may need toimport a text file generated from a reporting or tracking tool into one of your database tables. There- fore, you need to be fluent in the use of Oracle Database XE’s import and export capabilities.In

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In Chapter 30, we presented table constraints such as PRIMARY KEY and CHECK. In that same chapter, we introduced unique indexes as a way to enforce a PRIMARY KEY constraint. In addition to usingindexes to enforce constraints, you can use indexes to boost the performance of queries significantly by reducing the amount of time needed to retrieve rows from a table instead of reading every row in

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Atrigger is a block of Oracle PL/SQL code that executes in response to some predetermined event. Specifically, this event involves inserting, modifying, or deleting table data, and the task can occureither prior to or immediately following any such event. This chapter introduces triggers, one of Oracle’s key features that supplement what you cannot easily accomplish with Oracle’s built-in

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Throughout this book you’ve seen quite a few examples where the Oracle queries are embedded directly into the PHP script. Indeed, for smaller applications this is fine. However, as applicationcomplexity and size increase, continuing this practice could be the source of some grief.One of the most commonplace solutions to these challenges comes in the form of an Oracle database feature known as a

Mr Proccesnoreply@blogger.com0tag:blogger.com,1999:blog-6639202723621828402.post-7683689711614984672009-07-14T10:02:00.000-07:002010-04-18T08:20:31.507-07:00

The capability to prejoin two or more tables or restrict the columns or rows on a single table has long been available for Oracle users by using views. Views are database objects that look a lot liketables, but are instead derived from SELECT statements performed on one or more tables.This chapter begins by briefly introducing the concept of views and the various advantages of incorporating

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interface and PHP. Now it’s time to dig deeper into select queries and refine the results so you getexactly what you’re looking for, either in great detail or in summary.In the first part of this chapter, we show you how to install and use the PEAR package HTML_Table to create basic HTML tables and populate them manually with constants as well as use a database table to populate an HTML

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Now that you have a good understanding of how queries and Data Manipulation Language (DML)statements work, we will add some structure to these statements by grouping them into transactionsto enhance the logical consistency of your database. Using a classic example, if your PHP application handles automatic teller machine (ATM) transactions, you want to make sure that the withdrawal of funds from

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Now that you have a good understanding of Oracle Database XE’s architecture, column datatypes, basic SQL commands, and security methods, it’s time to leverage these database features withinyour PHP applications by using the Oracle OCI8 extension. In Chapter 24, we introduced PDO, a database-independent abstraction layer. In contrast, however, the Oracle OCI8 extension provides you with access to

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If you’ve already begun creating end user applications in your PHP and Oracle Database XE envi- ronment, you’ve probably revisited the age-old question: do you enforce security at the database orin your PHP application? In Chapter 14, you explored many authentication methods, one of which includes storing your authentication information in a database table. However, you must also protect the

Mr Proccesnoreply@blogger.com0tag:blogger.com,1999:blog-6639202723621828402.post-12309686899856376332009-07-14T09:54:00.000-07:002010-04-18T08:20:31.408-07:00

In Chapter 27, we gave you a whirlwind tour of Oracle Database XE administration, describing the logical and physical storage structures of a database, including tablespaces and the other structuresthat comprise a database.In this chapter, we approach database objects from both a user’s and a developer’s point of view, starting with an overview of how to create and manage tablespaces. Inevitably

Mr Proccesnoreply@blogger.com0tag:blogger.com,1999:blog-6639202723621828402.post-35670837033872815602009-07-14T09:53:00.000-07:002010-04-18T08:20:31.394-07:00

In Chapter 28 we introduced interacting with Oracle Database XE primarily as a DBA. Since your job may involve wearing many hats, you will most likely interact with Oracle Database XE not only as aDBA but also as a developer and an ad hoc query user. As a result, Oracle provides many different ways to interact with the database, depending on your role.In that same chapter, we showed you how to

Mr Proccesnoreply@blogger.com0tag:blogger.com,1999:blog-6639202723621828402.post-55647194690374550572009-07-14T09:52:00.000-07:002010-04-18T08:20:31.378-07:00

In Chapter 27, you installed the Oracle database component and performed the basic configuration steps to round out your PHP environment. In this chapter, we’ll cover an overview of the Oraclearchitecture and how to use several Oracle-supplied utilities, and give you a whirlwind tour of the other tools available at the Oracle Database XE home page.While your focus as a PHP/Oracle developer is

Mr Proccesnoreply@blogger.com0tag:blogger.com,1999:blog-6639202723621828402.post-62205228179157475512009-07-14T09:50:00.000-07:002010-04-18T08:20:31.365-07:00

In Chapter 2, you installed Apache and PHP; now it’s time to add the Oracle database component. In this chapter, we’ll give you the basic installation instructions for Oracle Database XE on bothWindows and supported Linux platforms. First, we’ll give you the general requirements for each platform, and then you can dive into the sections for your particular platform.After the installation tasks

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Oracle, a major supplier of information management software, was started in 1977 when LarryEllison founded Software Development Laboratories (SDL). Though the name changed in 1979 toRelational Software Inc. (RSI), the company continued to innovate database technologies at a rapid pace. That same year it created the first commercial SQL-based relational database. It wasn’t until1983 that RSI

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Even at this likely early stage of your Web development career, chances are you’re already attempting to sketch out the features of a long-desired custom application. An e-commerce store perhaps? Anonline community forum devoted to stamp collecting? Or maybe something a tad less interesting but nonetheless very practical, such as a corporate intranet? Regardless of the purpose, you should always

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The Web makes it incredibly easy for you to communicate your message to anybody with an Internet connection and a Web browser, no matter if they’re sitting in a café in Moscow’s Red Square, on afarm in Ohio, in a cubicle in a Shanghai high-rise, or in an Israeli classroom.There is one tiny issue: only about 29 percent of the total Internet population actually speaks English.1 The rest speak

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While all mainstream databases adhere to the SQL standard, albeit to varying degrees, the interfaces that programmers depend upon to interact with the database can vary greatly (even if the queriesare largely the same). Therefore, applications are almost invariably bound to a particular database, forcing users to also install and maintain the required database if they don’t already own it or,

Mr Proccesnoreply@blogger.com0tag:blogger.com,1999:blog-6639202723621828402.post-84905450048695582162009-07-14T09:44:00.000-07:002010-04-18T08:20:31.290-07:00

As of PHP 5, support was added for the open source database server SQLite (http://www.sqlite. org/). This was done partly in response to the decision to unbundle MySQL from version 5 due tolicensing discrepancies and partly due to a realization that users might benefit from the availability of another powerful database that nonetheless requires measurably less configuration and mainte- nance

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Any Web site can be thought of as a castle under constant attack by a sea of barbarians. And as the history of both conventional and information warfare shows, often the attackers’ victory isn’t entirelydependent upon their degree of skill or cunning, but rather on an oversight by the defenders. As keepers of the electronic kingdom, you’re faced with no small number of potential ingresses from

Mr Proccesnoreply@blogger.com0tag:blogger.com,1999:blog-6639202723621828402.post-67857404449649239812009-07-14T09:40:00.000-07:002010-04-18T08:20:31.253-07:00

This chapter discusses some of the more applicable implementations of Web Services technologies and shows you how to use PHP to start incorporating them into your Web application developmentstrategy right now. To accomplish this goal without actually turning this chapter into a book unto itself, the discussion that follows isn’t intended to offer an in-depth introduction to the general concept

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All Web development careers started at the very same place: with the posting of a simple Web page. And boy was it easy. You just added some text to a file, saved it with an .html extension, andposted it to a Web server. Soon enough, you were incorporating animated GIFs, JavaScript, and eventually a powerful scripting language such as PHP into your pages. Your site began to swell, first to 5

Mr Proccesnoreply@blogger.com0tag:blogger.com,1999:blog-6639202723621828402.post-2249016580661065252009-07-14T09:36:00.000-07:002010-04-18T08:20:31.216-07:00

These days, using HTTP sessions to track persistent information such as user preferences within even the simplest of applications is more the rule than the exception. Therefore, no matter whetheryou are completely new to Web development or are a grizzled veteran hailing from another language, you should take the time to carefully read this chapter.Available since the version 4.0 release, PHP’s

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As corporate hardware and software infrastructures expanded throughout the last decade, ITprofessionals found themselves overwhelmed with the administrative overhead required to managethe rapidly growing number of resources being added to the enterprise. Printers, workstations, servers, switches, and other miscellaneous network devices all required continuous monitoring and manage- ment, as did

Mr Proccesnoreply@blogger.com0tag:blogger.com,1999:blog-6639202723621828402.post-10079701237177359372009-07-14T09:32:00.000-07:002010-04-18T08:20:31.185-07:00

You may have turned to this chapter wondering just what PHP could possibly have to offer in regard to networking. After all, aren’t networking tasks largely relegated to languages commonlyused for system administration, such as Perl or Python? While such a stereotype might have once painted a fairly accurate picture, these days, incorporating networking capabilities into a Web appli- cation is

Mr Proccesnoreply@blogger.com0tag:blogger.com,1999:blog-6639202723621828402.post-83874688719812890832009-07-14T09:31:00.000-07:002010-04-18T08:20:31.169-07:00

While most people tend to equate the Web with Web pages only, HTTP actually facilitates the transfer of any kind of file, such as Microsoft Office documents, PDFs, executables, MPEGs, zip files,and a wide range of other file types. Although FTP historically has been the standard means for uploading files to a server, such file transfers are becoming increasingly prevalent via a Web-based

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Authenticating user identities is a common practice in today’s Web applications. This is done not only for security-related reasons but also to offer site customization features based on user prefer-ences and type. Typically, users are prompted for a username and password, the combination of which forms a unique identifying value for that user. In this chapter, you’ll learn how to prompt for

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You can throw about technical terms such as relational database, Web Services, session handling,and LDAP, but when it comes down to it, you started learning PHP because you wanted to build cool,interactive Web sites. After all, one of the Web’s most alluring aspects is that it is two-way media; the Web not only enables you to publish information but also offers an effective means for

Mr Proccesnoreply@blogger.com0tag:blogger.com,1999:blog-6639202723621828402.post-61850705998982529122009-07-14T09:27:00.000-07:002010-04-18T08:20:31.119-07:00

Time- and date-based information plays a significant role in our lives and, accordingly, program- mers must commonly wrangle with temporal data on a regular basis. When was a tutorial published?Is the pricing information for a particular product recent? What time did the office assistant log into the accounting system? At what hour of the day does the corporate Web site see the most visitor

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Good programmers write solid code, while great programmers reuse the code of good program- mers. For PHP programmers, PEAR, the acronym for PHP Extension and Application Repository, isone of the most effective means for finding and reusing solid PHP code. Inspired by Perl’s wildly popular CPAN (Comprehensive Perl Archive Network), the PEAR project was started in 1999 by noted PHP developer

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It’s quite rare to write an application that is entirely self-sufficient—that is, a program that does not rely on at least some level of interaction with external resources, such as the underlying file and operatingsystem, and even other programming languages. The reason for this is simple: as languages, file systems, and operating systems mature, the opportunities for creating much more

Mr Proccesnoreply@blogger.com0tag:blogger.com,1999:blog-6639202723621828402.post-58614712585923036522009-07-14T09:21:00.000-07:002010-04-18T08:20:31.057-07:00

Programmers build applications that are based on established rules regarding the classification, parsing, storage, and display of information, whether that information consists of gourmet recipes,store sales receipts, poetry, or some other collection of data. This chapter introduces many of thePHP functions that you’ll undoubtedly use on a regular basis when performing such tasks.This chapter

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Even if you wear an S on your chest when it comes to programming, you can be sure that errors will creep into all but the most trivial of applications. Some of these errors are programmer-induced—they are the result of mistakes made during the development process. Others are user-induced, caused by the end user’s unwillingness or inability to conform to application constraints. For example,

Mr Proccesnoreply@blogger.com0tag:blogger.com,1999:blog-6639202723621828402.post-14701492348895421932009-07-14T09:16:00.000-07:002010-04-18T08:20:31.026-07:00

Chapter 6 introduced the fundamentals of object-oriented programming (OOP). This chapter builds on that foundation by introducing several of the more advanced OOP features that you shouldconsider once you have mastered the basics. Specifically, this chapter introduces the following five features:Object cloning: One of the major improvements to PHP’s object-oriented model in version 5 is the

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While for many languages object orientation is simply a matter of course, it took several years before such features were incorporated into PHP. Yet the early forays into adding object-orientedfeatures to the language were considered by many to be a poor attempt at best. Although the very basic premises of object-oriented programming (OOP) were offered in version 4, several deficiencies exist,

Mr Proccesnoreply@blogger.com0tag:blogger.com,1999:blog-6639202723621828402.post-6011403245208571482009-07-14T09:13:00.000-07:002010-04-18T08:20:30.989-07:00

Much of your time as a programmer is spent working with data sets. Some examples of data sets include the names of all employees at a corporation; the U.S. presidents and their correspondingbirth dates; and the years between 1900 and 1975. In fact, working with data sets is so prevalent that a means for managing these groups within code is a common feature of all mainstream program- ming

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Computer programming exists in order to automate tasks of all sorts, from mortgage payment calculation to determining a person’s daily recommended caloric intake. However, as these tasksgrow increasingly complex, you’ll often find they comprise other often repetitive tasks. For example, an e-commerce application might need to validate an e-mail address on several different pages, such as when a

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You’re only two chapters into the book and already quite a bit of ground has been covered. By now, you are familiar with PHP’s background and history and have delved deep into the installation andconfiguration concepts and procedures. This material sets the stage for what will form the crux of much of the remaining material in this book: creating powerful PHP applications. This chapter initiates

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Chances are you’re going to rely upon an existing corporate IT infrastructure or a third-party Web hosting provider for hosting your PHP-driven Web sites, alleviating you of the need to attain a deepunderstanding of how to build and administrate a Web server. However, as most prefer to develop applications on a local workstation or laptop, or on a dedicated development server, you’re likely

Mr Proccesnoreply@blogger.com0tag:blogger.com,1999:blog-6639202723621828402.post-52141849640252497692009-07-14T08:59:00.000-07:002010-04-18T08:20:30.913-07:00

In many ways the PHP language is representative of the stereotypical open source project, created to meet a developer’s otherwise unmet needs and refined over time to meet the needs of its growingcommunity. As a budding PHP developer, it’s important you possess some insight into how the language has progressed, as it will help you to understand the language’s strengths, and to some extent the

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Introduction to PHPGTKPHPGTK is an extension to PHP that allows you to create graphical user interface (GUI) applications. Instead of running in a browser, your PHP application runs in its own application window. These applications are client-side only. They do not reside on the Web server. The files instead reside on the user's hard drive. For users to use the PHPGTK application, they must have

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OverviewPHP is able to dynamically generate and modify images. To use this advanced functionality in PHP, you need to include some additional libraries that are not included by default when you install PHP.The GD LibraryPHP provides the ability to create and manipulate images through support of the GD library. The GD home page is located at www.boutell.com/gd/ and lists the definition of GD as:

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OverviewXML (eXtensible Markup Language) is finally in the mainstream and showing the benefits that the faithful have been spouting since XML's inception. A quick look at XML support in Apache and the Java language should be enough to affirm that XML is here to stay.PHP has built-in support for XML in the form of an extension. Unlike other extensions, XML is compiled in by default so you should

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IntroductionThis Meeting Manager application was designed to be a simple way to coordinate meetings. You can specify actual meeting room locations, or use the built-in virtual room and conduct the meeting over a conference call or Web meeting service. You can specify the phone number and the Web address right in the meeting.An administrator sets up the users and rooms via an administration

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OverviewBugs are an everyday part of a programmer's life. We all forget a semicolon or an end bracket at one time or another. Sometimes, we spell a variable name wrong and wonder why the value that is supposed to be showing up on the screen keeps coming up blank. Other times you wonder what gremlins are lurking on the database server because the data just isn't going in (or coming out) the way

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User Authentication OverviewIf you've ever built a Web site that requires user registration, then you have some idea of what is required to restrict access so that you can be sure the user who is registered is the same user who is currently accessing the site. In almost all cases, you must require the user to enter some sort of login and password to gain access to the site.The current trend in

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OverviewPHP is a very useful language for working with files. Although it may not be as robust as other languages, such as PERL, when it comes to parsing files, PHP still provides great power and flexibility when it comes to working with text files.This chapter covers reading from, manipulating, and writing to text files. You can use the features covered in this chapter to create applications

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IntroductionThis chapter provides a simple shopping cart application that highlights the topics covered in the previous chapters, namely database interaction, session management, and form processing.This shopping cart contains features that I would consider to be a bare minimum. You should add additional features as you see fit, making sure to be conscious of security issues surrounding the

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Introduction to Better FormsThis chapter covers forms. Forms are the most fundamental method of interaction for your users. Users must use a form to enter information into a site. Think about it, every bulletin board, shopping cart, feedback form, and poll is a type of form. Without forms, the Web is nothing more than a publishing medium for those who can FTP Web pages up to a server.Since forms

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Advanced Database Interaction in PHP4If you have been playing with PHP for a while, you have most likely noticed its excellent support for connecting to MySQL databases. Most of the PHP books on the market describe PHP database support only with MySQL. But PHP supports many more databases with almost the same support it provides for MySQL. As of version 4.1, PHP supports the following databases

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Introduction to Session Management in PHP4This chapter introduces you to session management using PHP4's built-in session management techniques.Session management allows you to track variables associated with a user for a specific Web session. A Web session is the time that a user spends on pages on your site using the same browser instance. If the user closes the browser (or you explicitly end

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OverviewThis book assumes that you have some experience with PHP. This book is not meant to be an introductory text on PHP programming but is instead a book on some of the more advanced uses for PHP that you won't find in many of the introductory books or tutorials on the Web.Having said that, I am still providing here a brief introduction to PHP for those who may need a quick refresher or are

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W. JASON GILMORE has been obsessing over all things open source for more than ten years, with a primary focus on Web development technologies. He has been extensively published in publications such as Developer.com, TechTarget, and Linux Magazine, with his writings adopted for use within the United Nations and Ford Foundation educational programs. Jason is the author of four books, including the

Mr Proccesnoreply@blogger.com0tag:blogger.com,1999:blog-6639202723621828402.post-42645662399717800372009-07-13T02:15:00.000-07:002010-04-18T08:20:30.147-07:00

In the history of the Internet, 2005–2006 will be remembered as the year when online mapping finally came of age. Prior to 2005, MapQuest and other mapping services allowed you to look up directions, search for locations, and map businesses, but these searches were limited, usu- ally to the companies the services had partnered with, so you couldn’t search for any location. On February 8, 2005,

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Enhance the user experience of your PHP website using AJAX with this practical tutorial featuring detailed case studiesCristian Darie is a software engineer with experience in a wide range of modern technologies, and the author of numerous technical books, including the popular "Beginning E-Commerce" series. Having worked with computers since he was old enough to press the keyboard, he initially

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Over the past three years PHP has evolved from being a niche language used to add dynamic functionality to small sites to a powerful tool making strong inroads into large-scale, business-critical Web systems.The rapid maturation of PHP has created a skeptical population of users from more traditional "enterprise" languages who question the readiness and ability of PHP to scale, as well as a large

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