AJAX and PHP

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Preparing Your Working Environment TIP Programmers who don't want to install the required software manually have the option of using a software package such as XAMPP, which bundles all of them (and many more) in a single installer file. XAMPP is packaged for Linux, Windows, Mac OS X, and Solaris, and is free of charge. You can get XAMPP from http://www.apachefriends.org/ en/xampp.html. If you decide to use XAMPP, you can skip directly to setting up the ajax database, as shown at the end of this appendix. Preparing Your Windows Playground Here we cover installing these software products in your Windows machine: • Apache 2 • PHP 5 • MySQL 5 Installing Apache You can download the latest MSI Installer version of the Apache HTTP Server from http://httpd.apache.org/download.cgi. Download the latest Win32 Binary (MSI Installer), which should have a name like apache_2.x.y-win32-x86-no_ssl.msi, then execute it. The default installation location of Apache 2 is C:\Program Files\Apache Group\Apache2\, but the installer allows you to specify a different path. You can choose a more convenient location (such as C:\Apache), which can make your life working with Apache easier. 256 www.it-ebooks.info
Appendix A During installation you'll be asked to enter your server's information: Figure A.1: Installing Apache 2.0 If you're not sure about how to complete the form, just type localhost for the first two fields, and write your email address for the last. You can change this information later by editing the Apache configuration file. The default location of this file is C:\Program Files\Apache Group\Apache2\ conf\httpd.conf. You can also choose to install Apache on Port 80, or on Port 8080. The default port is 80, but if you already have a web server (such as IIS) on your machine, you'll need to install Apache on a different port. If you choose to run Apache on Port 8080, you will need to start the Apache service manually by going to the Apache bin folder (by default C:\Program Files\Apache Group\ Apache2\bin), and typing apache -k install When the web server runs on a port different than 80, you need to specify the port manually when making HTTP requests, such as in http://localhost:8080/ajax/suggest. In the next setup screens, you can safely use the default options. Along with the Apache server the installer will also start the Apache Service Monitor program, which is available from the taskbar. The taskbar icon reflects the current state of the web server (stopped, running, etc.), and also allows you to start, stop, or restart the Apache service. Keep in mind that you'll need to restart (or stop and then start) the Apache service after making any changes to the httpd.conf configuration file, in order for the changes to become effective. 257 www.it-ebooks.info
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AJAX and PHP Building Responsive We
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About the Authors Cristian Darie is
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About the Reviewers Emilian Balanes
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Table of Contents Preface 1 Chapter
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Table of Contents Chapter 6: AJAX S
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Preface AJAX is a complex phenomeno
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Preface What You Need for This Book
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Preface Errata Although we have tak
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1 AJAX and the Future of Web Applic
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Chapter 1 Because end-user satisfac
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Chapter 1 Three points for you to k
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Chapter 1 With JavaScript, develope
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interrupting the user from his or h
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• Creating simple online chat sol
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Chapter 1 done typing. (This method
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Chapter 1 All exercises from this b
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etrieve the user name $name = $_GET
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Chapter 1 If you're curious to test
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Chapter 1 request. In our case, thi
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2 Client-Side Techniques with Smart
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AJAX Foundations: JavaScript and
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Chapter 2 • Because there is no s
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Time for Action—Using JavaScript
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Even More DOM In the previous exerc
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Chapter 2 What Just Happened? Well,
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Chapter 2 font-size: 10pt; } .Table
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Chapter 2 Creating the XMLHttpReque
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Chapter 2 You could, for example, c
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You will learn the most interesting
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Chapter 2 The safer version of proc
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Chapter 2 4. Create a file call
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Chapter 2 Figure 2.6: The Four HTTP
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Chapter 2 } } else { // display sta
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Chapter 2 } { // try to create XMLH
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Chapter 2 The responseXML method of
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Chapter 2 Figure 2.10: Opera Displa
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I admit that the following piece of
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3 Server-Side Techniques with PHP a
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Chapter 3 } for (var i=0; i
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Chapter 3 // create the element $b
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Chapter 3 // create the root eleme
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Chapter 3 // read a file from the s
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Chapter 3 Figure 3.3: PHP Parameter
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Chapter 3 Without the customized er
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} } // display the error in case of
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Chapter 3 Figure 3.7: Connecting to
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Chapter 3 } } // continue only if H
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Chapter 3 You can make Firefox list
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Chapter 3 } "MSXML2.XMLHTTP.4.0", "
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'TEXT: ' . $errStr . chr(10) . 'LOC
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etrieve the parameters $num = 1; //
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Chapter 3 Figure 3.16: Flowchart De
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} Chapter 3 // only continue if xml
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} throw(response.length == 0 ? "Ser
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function process() { // ... if (req
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Chapter 3 Working with MySQL A back
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Chapter 3 Figure 3.17: Executing SQ
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Chapter 3 SELECT user_id, user_name
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3. In your foundations folder, crea
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Chapter 3 After these commands exec
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Chapter 3 • friendly.php is a PHP
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This example requires a JavaSc
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} } // try to connect to the server
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Chapter 3 } // create HTML-formatte
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Chapter 3 On the server side, all t
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4 AJAX Form Validation Validating i
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Chapter 4 Always validate user inpu
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Chapter 4 Figure 4.4: Successful Su
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Chapter 4 .left { margin-left: 150p
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Chapter 4 value="" />
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Registration Successfull! <<
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Chapter 4 } } { // display error me
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Chapter 4 require_once ('config.php
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Chapter 4 } { } $_POST['txtBthDay']
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Chapter 4 } } ?> return ($value ==
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Chapter 4 The field ID and value re
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Chapter 4 If we are dealing with cl
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5 AJAX Chat We are living in a worl
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Chapter 5 Implementing AJAX Chat We
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Chapter 5 // default the last id to
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} Chapter 5 ' DATE_FORMAT(posted_on
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Chapter 5 AJAX Chat Your b
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* function called when the Send but
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} } // retrieve the arrays from the
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Chapter 5 } } } // call server asyn
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Chapter 5 If you analyze the code f
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The business logic behind chat.php
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6 AJAX Suggest and Autocomplete Sug
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Chapter 6 The clever part of the Ja
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Chapter 6 6. Create another file na
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Chapter 6 { } a { } font-weight: bo
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Chapter 6 } { // try to create XMLH
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Chapter 6 } } } } { } displayError(
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Chapter 6 div += "" + "" + crtFunct
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} } // select the new suggestion an
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Chapter 6 } } else // FF if (oText.
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Chapter 6 Figure 6.4: PHP Documenta
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Chapter 6 We have talked about cach
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Chapter 6 visible, we need to scrol
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7 AJAX Real-Time Charting with SVG
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Chapter 7 Figure 7.1: SVG Chart The
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Chapter 7 Figure 7.2: SVG Charting
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Chapter 7 } { xmlHttp.onreadystatec
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} } // sets the X and Y attributes
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Chapter 7 } // Supported by Mozilla
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Chapter 7 • All HTTP requests go
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8 AJAX Grid Data grids have always
Page 217 and 218: Chapter 8 Figure 8.2: AJAX Grid in
Page 219 and 220: $name = $_GET['name']; // update th
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Page 223 and 224: Chapter 8 # editId(, true) Edit
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Page 231 and 232: Chapter 8 On the client, this data
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Page 235 and 236: 9 AJAX RSS Reader In the last few y
Page 237 and 238: Chapter 9 Figure 9.1: Managing RSS
Page 239 and 240: header('Pragma: no-cache'); header(
Page 241 and 242: Chapter 9 Loading feed... Abou
Page 243 and 244: Chapter 9 } // continue if the proc
Page 245 and 246: Chapter 9 } width: 410px; backgroun
Page 247 and 248: And finally, we send the HTTP reque
Page 249 and 250: 10 AJAX Drag and Drop When drag-and
Page 251 and 252: Chapter 10 The Prototype features a
Page 253 and 254: Chapter 10 When dropping a task on
Page 255 and 256: Chapter 10 DROP HERE TO DELETE
Page 257 and 258: header('Expires: Fri, 25 Dec 1980 0
Page 259 and 260: Chapter 10 } } } else if (action ==
Page 261 and 262: Chapter 10 11. Load http://localhos
Page 263 and 264: details are saved using a cache sys
Page 265 and 266: Chapter 10 Summary This is it! You'
Page 267: A Preparing Your Working Environmen
Page 271 and 272: Before going through any case studi
Page 273 and 274: Appendix A Preparing Your *nix Play
Page 275 and 276: 8. Finally, point your web browser
Page 277 and 278: 2. Write ajax in the Create a new d
Page 279 and 280: Index A abort() method, XMLHttpRequ
Page 281 and 282: exception handling, JavaScript, 43
Page 283 and 284: PHP Parameters and Error Handling r
Page 285 and 286: updateChart() function, realTimeCha
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