Unfortunately, despite the best efforts of myself, the technical editor, the copy editor, the line editor, the proofreader, and despite the multiple revisions, errors still occur. This page lists all the errors found in the book since it went to print.
Note: errors are corrected in subsequent printings and therefore your particular copy may not contain all of the following. You may also be experiencing problems not caused by a mistake in the book. If so, you may find the solution to your problem by using the book’s corresponding forum. Significant changes in the technology will be addressed there and you can also find problems and solutions encountered by other readers.
Known Errors in the Book:
| Chapter | Page # | Description | Date Added |
|---|---|---|---|
| Chapter 2: Programming with PHP | 50 | Line 65 of Script 2.4 is missing echo $greeting;. The code in Step 8 on page 52 is correct. | February 7, 2016 |
| Chapter 3: Creating Dynamic Web Sites | 107 | The second line of code under Step 3, and line 30 of Script 3.10 on page 106, should use multiplication, not division: $dollars = $gallons * $ppg;. | October 9, 2011 |
| Chapter 6: Database Design | 191 | Step 1 should have you access the “forum” database, not “forums”. | February 7, 2016 |
| Chapter 6: Database Design | 193 | Step 6 should suggest that you repeat Steps 3-5. | April 5, 2012 |
| Chapter 7: Advanced SQL and MySQL | 205 | The first sentence of the third paragraph should say “This join is selecting two columns…”. | October 9, 2011 |
| Chapter 7: Advanced SQL and MySQL | 210 | The query in Step 3 is missing the % before the “Y” (as in the figure). This error is also repeated in the final tip on page 211. | January 2, 2013 |
| Chapter 9: Using PHP with MySQL | 277 | The code in Step 8, which assigns the query to the $q variable is missing its terminating double quotation mark. The corresponding code in Script 9.3 is correct. | February 16, 2012 |
| Chapter 10: Common Programming Techniques | 320 | In the first paragraph, it should say “the first ten records—0 through 9—should be retrieved”. | February 16, 2012 |
| Chapter 11: Web Application Development | 334 | The code in Step 6 should end with a closing PHP tag. | January 2, 2013 |
| Chapter 11: Web Application Development | 354 | The code in Step 8 is missing the closing </li>. | January 2, 2013 |
| Chapter 11: Web Application Development | 360 | The code in Step 9 is missing the readfile() line included in the corresponding script. | January 2, 2013 |
| Chapter 11: Web Application Development | 361 | The second tip in the left column says “Chapter 17” but should really say “Chapter 18”. | February 3, 2016 |
| Chapter 12: Cookies and Sessions | 389 | On line 19 of Script 12.8, the opening [ is missing after $data. The corresponding code in Step 2 is correct. | March 14, 2012 |
| Chapter 13: Security Methods | 403 | The second sentence at the top of the right-hand column should identify Chapter 14 as “Perl-Compatible Regular Expressions”. | June 13, 2012 |
| Chapter 13: Security Methods | 405 | The parenthetical near the end of the first paragraph should say “i.e., $v was found in $value”. | August 28, 2012 |
| Chapter 13: Security Methods | 405 | On line 58 of Script 13.1, the $scrubbed array should be reset instead of $_POST, as this new array is what the form will use. | May 1, 2012 |
| Chapter 14: Perl-Compatible Regular Expressions | 450 | The first line of the second paragraph should begin “Of these modifiers,” | January 2, 2013 |
| Chapter 16: An OOP Primer | 514 | On lines 79-80 of Script 16.5, the form elements should be named just “start” and “end”. The code in the corresponding step is correct. | January 2, 2013 |
| Chapter 17: Example—Message Board | 530 | Step 2 is missing session_start(); as the first line of code, corresponding to Script 17.1, line 14. | February 3, 2016 |
| Chapter 18: Example—User Registration | 563 | At the end of Script 18.2, the phrase “paste code here” should not be there. Ugh. | December 8, 2011 |
| Chapter 18: Example—User Registration | 586 | The code in Step 2 should refer to $_GET[‘x’] not $trimmed[’email’] (that’s what I get for copying and pasting). The code in the corresponding script is correct. | March 3, 2012 |
| Chapter 18: Example—User Registration | 598 | Figure E is incorrect. | January 8, 2012 |
| Chapter 18: Example—User Registration | 599 | Script 18.11, line 7, the comment should refer to user_id, not first_name. | February 3, 2016 |
| Chapter 19: Example—E-Commerce | 621 | On line 138 of Script 19.2, the two references to $_POST[‘existing’] should be to $_POST[‘artist’]. This also applies to the code in Step 15 on page 627. | December 8, 2011 |
| Chapter 19: Example—E-Commerce | 635 | On line 35 of Script 19.6, the closing </a> is missing. This also applies to the code in Step 5 on page 636. | January 2, 2013 |