Vikram has over ten years of experience working with PHP and MySQL series for PHP beginners, and he has extensive experience deploying PHP in a variety . ware without the PHP lists where people generously spend their time answer- ing foolish questions from beginners. Many ideas have come from reading. Janet Valade is the author of PHP 5 For Dummies as well as the first edition of this book. In addition, Janet has authored and revised chapters.
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Trademarks: Wiley, the Wiley Publishing logo, For Dummies, the Dummies Man Janet Valade is the author of PHP & MySQL For Dummies. Janet Valade is the author of PHP & MySQL For Dummies, which is in its third PHP & MySQL: Your visual blueprint for creating dynamic. The Certified Wireless Network Professional (CWNP) Program. Hacking Kevin is author of Hacking Hacking Wireless Networ.
PHP 7 from Scratch PHP 7 From Scratch is a book for total beginners that explains basic properties of the language, setting up a development environment, using built-in functions and constructing a simple web page. If you answer the challenge question incorrectly, the form displays an error message that explains what went wrong see Figure As I write this, Twitter is one of the most popular and fastest-growing services on the web. Your next step is to send the request to bit. Com Download at WoweBook. Logging out hides the administrative links again. Join Dev Awesome.
This is generally done as a security measure. You want to obfuscate the values on the current form to make it more difficult for a spam bot to parse your form and answer the challenge question. Converting the random numbers to their ASCII 4 character code equivalents should help you baffle spam bots. Computers can understand only numbers—every symbol is mapped to a numeric code.
PHP provides a function to perform this conversion called ord. Obfuscate the numbers by adding the following code in bold to generateChallenge: The markup creates a text input field in which the user will type his answer to the challenge question.
You label the text input with an obfuscated string that you hope will confuse a spam bot when it displays this question: Add the code in bold to generateChallenge to return the markup for a challenge question: You add the challenge question by incorporating the code in bold to showCommentForm: Just below the comment text area, you can see a new input labeled with the challenge question see Figure Call this method verifyResponse. For the sake of simplicity, make 3 your new error code for an incorrect response to the challenge question.
You can make these changes by adding the code in bold to saveComment: The only thing left to do is to add an error message to correspond with error code 3, which you add in showCommentForm by inserting the code in bold: If you answer the challenge question incorrectly, the form displays an error message that explains what went wrong see Figure When clicked, this link takes a user to her Twitter5 home page and fills out her status field automatically with the title of the blog and a URL.
You use a shortened URL here because Twitter has a character limit for status updates, and blog URLs have a tendency to be fairly long.
As I write this, Twitter is one of the most popular and fastest-growing services on the web. Creating a Shortened Link with http: In the case of bit. The request string is the URL you want to shorten, as well as other information including the bit. You access the bit. This function accepts the URL you want to shorten as an argument. When you create shortenUrl , begin by building the request you want to send to the bit. Send your requests for URL shortening to http: In functions.
You can obtain these for free by setting up an account at http: Your next step is to send the request to bit.
To do this, your script needs to connect to bit. By supplying the bit.
Separate the shortened URL from the response. For example, you get this response you shorten the URL, http: This means that the whole response is in a container called bitly. You can find the results container inside the bitly container, which itself contains the nodeKeyVal container. Once you do this, you can drill down within the XML easily.
Additionally, bit. You generate this link from another function, which you name postToTwitter.
This function accepts the title of the entry as its only argument. It then appends the shortened URL to the entry title, URL encodes the whole string using urlencode , and adds a link to Twitter as the value of the status variable. The Twitter link points to http: Do this by modifying index. By now, you should feel comfortable with the basics of PHP, as well as some of the more advanced features, such as regular expressions and image processing.
Com Download at WoweBook. PHP for Absolute Beginners. Read more. Absolute Beginners.
In this article, we've collected some of our favorite free PHP books that can help you learn new approaches to solving problems and keep your skill set up to date. This book is for beginners and intermediate developers who want to learn something new or improve their skills.
It is an easy read, and covers everything from the fundamentals of the language to building large PHP applications. Each chapter includes very detailed explanations with some easy to understand examples. This book will show you how to improve the security of your app. It includes in-depth explanations of some of the most used security attacks, comprehensive examples and gives you advice on how to protect your application from them.
Code Smart is a great introduction to Laravel, one of the most popular php frameworks. It is easy to read and understand, has great examples and shows you some of the best practices used in Laravel. The book is great for beginners and it teaches you how to set up a new project from scratch and build on it using the powerful features of the framework. It teaches you best practices, dependency injection, working with databases, testing and much more, including links to external reading materials and tutorials.
It is translated in many different languages like English, German, Spanish, French and many more.
This book is aimed at advanced php developers and is comprised of articles from the author's Practical PHP Testing blog series. It includes a chapter about test-driven developement TDD , code samples and a number of exercises after each chapter. The book covers the basics of PHP and is a handy resource to keep around as a reference.
It shows you how to use operators, structures, variables, functions, working with databases and much more, with great and easy to understand explanations, including a number of examples for each topic. Although it is written for PHP5, almost everything still applies for PHP7 thanks to the language's backwards compatibility. PHP 7 From Scratch is a book for total beginners that explains basic properties of the language, setting up a development environment, using built-in functions and constructing a simple web page.