PHP and MySQL Web Development 4th Ed-tqw-_darksiderg

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Repeating Actions Through Iteration 51 break; case "b" : echo "Customer referred by TV advert."; break; case "c" : echo "Customer referred by phone directory."; break; case "d" : echo "Customer referred by word of mouth."; break; default : echo "We do not know how this customer found us."; break; } (Note that both of these examples assume you have extracted $find from the $_POST array.) The switch statement behaves somewhat differently from an if or elseif statement. An if statement affects only one statement unless you deliberately use curly braces to create a block of statements. A switch statement behaves in the opposite way.When a case statement in a switch is activated, PHP executes statements until it reaches a break statement.Without break statements, a switch would execute all the code following the case that was true.When a break statement is reached, the next line of code after the switch statement is executed. Comparing the Different Conditionals If you are not familiar with the statements described in the preceding sections, you might be asking,“Which one is the best?” That is not really a question we can answer.There is nothing that you can do with one or more else, elseif, or switch statements that you cannot do with a set of if statements.You should try to use whichever conditional will be most readable in your situation.You will acquire a feel for which suits different situations as you gain experience. Repeating Actions Through Iteration One thing that computers have always been very good at is automating repetitive tasks. If you need something done the same way a number of times, you can use a loop to repeat some parts of your program. Bob wants a table displaying the freight cost that will be added to a customer’s order. With the courier Bob uses, the cost of freight depends on the distance the parcel is being shipped.This cost can be worked out with a simple formula. You want the freight table to resemble the table in Figure 1.7.
52 Chapter 1 PHP Crash Course Figure 1.7 This table shows the cost of freight as distance increases. Listing 1.2 shows the HTML that displays this table.You can see that it is long and repetitive. Listing 1.2 freight.html— HTML for Bob’s Freight Table Distance Cost 50 5 100 10 150 15
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PHP and MySQL ® Web Development Fo
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PHP and MySQL ® Web Development, F
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Contents at a Glance Introduction 1
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Table of Contents Introduction 1 I
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xii Contents Writing to a File 67 P
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xiv Contents Comparing Strings 119
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xvi Contents Overriding 170 Prevent
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xviii Contents Looking at the Datab
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xx Contents Using Indexes 305 Using
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xxii Contents Firewalls 357 Data Ba
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xxiv Contents 18 Implementing Secur
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xxvi Contents 22 Generating Images
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xxviii Contents Using a Standard Di
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xxx Contents Implementing Payment 6
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xxxii Contents Using an Existing Sy
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xxxiv Contents Learning More about
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Acknowledgments We would like to th
Page 38 and 39: Introduction WELCOME TO PHP AND MYS
Page 40 and 41: Introduction 3 PHP is an Open Sourc
Page 42 and 43: Introduction 5 Using the Open Datab
Page 44 and 45: Introduction 7 installing it for ma
Page 46 and 47: Introduction 9 What Is New in MySQL
Page 48: I Using PHP 1 PHP Crash Course 2 St
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Page 53 and 54: 16 Chapter 1 PHP Crash Course Listi
Page 55 and 56: 18 Chapter 1 PHP Crash Course Bob
Page 57 and 58: 20 Chapter 1 PHP Crash Course Notic
Page 59 and 60: 22 Chapter 1 PHP Crash Course Figur
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Page 67 and 68: 30 Chapter 1 PHP Crash Course This
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Page 71 and 72: 34 Chapter 1 PHP Crash Course You s
Page 73 and 74: 36 Chapter 1 PHP Crash Course If th
Page 75 and 76: 38 Chapter 1 PHP Crash Course Logic
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Page 83 and 84: 46 Chapter 1 PHP Crash Course Refre
Page 85 and 86: 48 Chapter 1 PHP Crash Course If yo
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Page 96 and 97: 2 Storing and Retrieving Data NOW T
Page 98 and 99: Opening a File 61 The form field fo
Page 100 and 101: Opening a File 63 In a Unix environ
Page 102 and 103: Opening a File 65 Remember that the
Page 104 and 105: Writing to a File 67 Figure 2.3 Usi
Page 106 and 107: Closing a File 69 Listing 2.1 order
Page 108 and 109: Reading from a File 71 Listing 2.2
Page 110 and 111: Reading from a File 73 Knowing When
Page 112 and 113: Reading from a File 75 This line re
Page 114 and 115: Using Other Useful File Functions 7
Page 116 and 117: A Better Way: Database Management S
Page 118 and 119: 3 Using Arrays THIS CHAPTER SHOWS Y
Page 120 and 121: Numerically Indexed Arrays 83 This
Page 122 and 123: Arrays with Different Indices 85 Th
Page 124 and 125: Array Operators 87 This line uses e
Page 126 and 127: Multidimensional Arrays 89 You can
Page 128 and 129: Multidimensional Arrays 91 Truck Pa
Page 130 and 131: Sorting Multidimensional Arrays 93
Page 132 and 133: Sorting Multidimensional Arrays 95
Page 134 and 135: Reordering Arrays 97 Listing 3.1 Co
Page 136 and 137: Loading Arrays from Files 99 Listin
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Loading Arrays from Files 101 part
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Performing Other Array Manipulation
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Performing Other Array Manipulation
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4 String Manipulation and Regular E
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Creating a Sample Application: Smar
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Formatting Strings 111 Figure 4.2 U
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Formatting Strings 113 Table 4.1 Ty
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Formatting Strings 115 Figure 4.3 A
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Joining and Splitting Strings with
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Comparing Strings 119 The length pa
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Matching and Replacing Substrings w
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Introducing Regular Expressions 123
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Finding Substrings with Regular Exp
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Next 131 Note In general, the regul
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134 Chapter 5 Reusing Code and Writ
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160 Chapter 6 Object-Oriented PHP U
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162 Chapter 6 Object-Oriented PHP I
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164 Chapter 6 Object-Oriented PHP S
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166 Chapter 6 Object-Oriented PHP H
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168 Chapter 6 Object-Oriented PHP f
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170 Chapter 6 Object-Oriented PHP c
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172 Chapter 6 Object-Oriented PHP I
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174 Chapter 6 Object-Oriented PHP }
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176 Chapter 6 Object-Oriented PHP T
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178 Chapter 6 Object-Oriented PHP L
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180 Chapter 6 Object-Oriented PHP L
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182 Chapter 6 Object-Oriented PHP o
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184 Chapter 6 Object-Oriented PHP U
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186 Chapter 6 Object-Oriented PHP F
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7 Error and Exception Handling IN T
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The Exception Class 195 In Listing
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User-Defined Exceptions 197 Listing
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Exceptions in Bob’s Auto Parts 19
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Exceptions in Bob’s Auto Parts 20
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Next 203 pression operator. If it f
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8 Designing Your Web Database NOW T
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Relational Database Concepts 209 Co
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Designing Your Web Database 211 Rel
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Designing Your Web Database 213 Ord
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Designing Your Web Database 215 Thi
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Web Database Architecture 217 Brows
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9 Creating Your Web Database IN THI
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Logging In to MySQL 221 we have use
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Introducing MySQL’s Privilege Sys
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Creating Database Tables 229 Go ahe
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Creating Database Tables 231 Listin
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Creating Database Tables 233 The bo
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Understanding MySQL Identifiers 235
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Choosing Column Data Types 237 For
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Choosing Column Data Types 239 Tabl
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Next 241 Table 9.10 TEXT and BLOB T
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244 Chapter 10 Working with Your My
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11 Accessing Your MySQL Database fr
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How Web Database Architectures Work
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Querying a Database from the Web 27
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Putting New Information in the Data
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Putting New Information in the Data
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Using Prepared Statements 281 Let
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Using Other PHP-Database Interfaces
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Next 285 The advantages of using MD
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288 Chapter 12 Advanced MySQL Admin
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13 Advanced MySQL Programming IN TH
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Transactions 313 applications such
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Foreign Keys 315 You should see the
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Stored Procedures 317 changes the e
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Stored Procedures 319 or drop funct
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Stored Procedures 321 action specif
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Next 323 +------+ | @l | +------+ |
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14 Running an E-commerce Site THIS
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Considering the Types of Commercial
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Understanding Risks and Threats 337
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Next 339 Evolving Governmental Poli
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342 Chapter 15 E-commerce Security
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16 Web Application Security IN THIS
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Identifying the Threats We Face 363
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Understanding Who We’re Dealing W
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Securing Your Code 367 the security
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Securing Your Code 369 However, the
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Securing Your Code 371 if (!checkda
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Securing Your Code 373 Consider the
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Securing Your Code 375 Although thi
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Securing Your Code 377 n n Have you
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Securing Your Web Server and PHP 37
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Securing Your Web Server and PHP 38
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Database Server Security 383 n Look
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Protecting the Network 385 Internet
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Computer and Operating System Secur
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Disaster Planning 389 hosted burned
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17 Implementing Authentication with
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Implementing Access Control 393 Fig
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Implementing Access Control 395 Lis
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Implementing Access Control 397 Lis
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Using Basic Authentication 399 Look
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Using Basic Authentication in PHP 4
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Using Basic Authentication with Apa
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Using Basic Authentication with Apa
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Using mod_auth_mysql Authentication
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18 Implementing Secure Transactions
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Providing Secure Transactions 411 N
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Using Secure Sockets Layer (SSL) 41
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Using Secure Sockets Layer (SSL) 41
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Providing Secure Storage 417 Screen
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Using Encryption in PHP 419 Storing
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Using Encryption in PHP 421 If you
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Using Encryption in PHP 423 and cre
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Using Encryption in PHP 425 Listing
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Further Reading 427 The script you
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IV Advanced PHP Techniques 19 Inter
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432 Chapter 19 Interacting with the
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452 Chapter 20 Using Network and Pr
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470 Chapter 21 Managing the Date an
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22 Generating Images ONE OF THE USE
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Understanding Image Formats 485 JPE
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Creating Images 487 Figure 22.1 The
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Creating Images 489 It takes as par
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Using Text and Fonts to Create Imag
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Drawing Figures and Graphing Data 4
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Further Reading 507 Listing 22.5.4
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23 Using Session Control in PHP IN
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Understanding Basic Session Functio
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Implementing Simple Sessions 513 Re
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Creating a Simple Session Example 5
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Implementing Authentication with Se
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24 Other Useful Features SOME USEFU
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Serializing Variables and Objects 5
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Temporarily Altering the Runtime En
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Using PHP on the Command Line 531 h
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V Building Practical PHP and MySQL
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536 Chapter 25 Using PHP and MySQL
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26 Debugging THIS CHAPTER DEALS WIT
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Programming Errors 553 run into thi
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Programming Errors 555 That same st
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Programming Errors 557 A SQL query
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Variable Debugging Aid 559 Logic er
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Variable Debugging Aid 561 This cod
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Altering the Error Reporting Settin
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Handling Errors Gracefully 565 You
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Next 567 Figure 26.1 You can give f
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570 Chapter 27 Building User Authen
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608 Chapter 28 Building a Shopping
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652 Chapter 29 Building a Web-Based
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688 Chapter 30 Building a Mailing L
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742 Chapter 31 Building Web Forums
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772 Chapter 32 Generating Personali
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33 Connecting to Web Services with
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Project Overview: Working with XML
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Project Overview: Working with XML
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Solution Components 813 If you woul
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Solution Overview 815 Caching As we
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Solution Overview 817 Although it d
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Solution Overview 819 Figure 33.5 B
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Solution Overview 821 Listing 33.3
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Solution Overview 823 Let’s work
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Solution Overview 825 if(!eregi('^[
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Solution Overview 839 data, but bec
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Solution Overview 845 Using SOAP to
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Solution Overview 847 } if($type ==
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Solution Overview 849 in memory. No
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Installing the Project Code 853 for
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34 Building Web 2.0 Applications wi
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What Is Ajax? 857 n Other common me
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What Is Ajax? 859 display the h1 te
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Fundamental Ajax 861 Note For secur
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Fundamental Ajax 863 function getSe
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Fundamental Ajax 865 The next step
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Fundamental Ajax 867 Listing 34.3 C
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Fundamental Ajax 869 Figure 34.2 Th
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Adding Ajax Elements to Earlier Pro
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For More Information 885 Some popul
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A Installing PHP and MySQL APACHE,
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Installing Apache, PHP, and MySQL U
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B Web Resources THIS APPENDIX LISTS
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Apache Resources 909 The PHP Resour
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Index SYMBOLS ! (logical operator),
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array_count_values() function 913 c
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ottom.php files (Tahuayo applicatio
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collapsing threads (Web forum appli
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CVS (Concurrent Versions System) 91
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date and time 921 user table, 289 W
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downloading 923 directories browsin
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escaping characters 925 reading, 45
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files 927 FILE privilege, 226-227,
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functions 929 foreign keys database
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functions 931 escapeshellcmd(), 378
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functions 933 prototypes, 144 puten
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images 935 hardware failure (commer
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keys 937 INSERT statement, 244 inse
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MaxClients parameter (Apache) 939 l
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mysqli_query() function 941 multidi
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operators 943 O Object data type (v
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PHP 945 paths absolute, 62 file, 44
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php.ini file 947 gethostbyaddr(), 4
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purchase.php script (Shopping Cart
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eturning 951 Perl, 123 slash (\), 1
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security 953 buttons, calling, 493
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Shopping Cart application 955 Warm
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statements 957 special characters l
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tab control sequence (\t) 959 print
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time and date 961 limitations, 79 l
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usort() function 963 UPDATE privile
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Web databases 965 views, File Detai
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word processor formats 967 JPEG (Jo
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What’s on the CD? The book’s co
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