Improve the performance of your PHP application to ensure the application users aren't left waiting About This Book · Make the optimum use of PHP coding to improve your programming productivity · Leverage the potential of PHP for server-side programming, memory management, and object-oriented programming · Packed with real-life examples to help the readers implement concepts as they learn Who This Book Is For This book is for those who have basic experience in PHP programming. If you are developing performance-critical applications, then this book is for you. What You Will Learn · Setup high performance development and production environment for PHP 7 · Discover new OOP features in PHP 7 to achieve high performance · Improve your PHP applications' performance · Attain improved database performance · Benchmark PHP applications to optimize them · Write quality code by learning to improve code reusability, simplicity, and expressiveness · Get rid of the bottlenecks in your PHP 7 applications by writing PHP code optimally · Tackle issues related to web applications, such as high user dependency and large datasets In Detail PHP is a great language for building web applications. It is essentially a server-side *ing language that is also used for general-purpose programming. PHP 7 is the latest version, providing major backward-compatibility breaks and focusing on high performance and speed. This fast-paced introduction to PHP 7 will improve your productivity and coding skills. The concepts covered will allow you, as a PHP programmer, to improve the performance standards of your applications. We will introduce you to the new features in PHP 7 and then will run through the concepts of object-oriented programming (OOP) in PHP 7. Next, we will shed some light on how to improve your PHP 7 applications' performance and database performance. Through this book, you will be able to improve the performance of your programs using the various benchmarking tools discussed. At the end, the book discusses some best practices in PHP programming to help you improve the quality of your code. Style and approach The book is a step-by-step guide to improve the quality of your code in PHP through real-time examples. The book takes a practical approach to improving the quality of your code.

Take your Android applications to the next level of interactivity by exploring the wide variety of Android sensors About This Book Get a thorough understanding of the fundamentals and framework of Android sensors. Acquire knowledge of advance sensor programming, and learn how to connect and use sensors in external devices such as the Android Watch, Polar heart rate monitors, Adidas speed cells, and so on. Learn from real-world sensor-based applications such as the Pedometer app to detect daily steps, the Driving app to detect driving events, and the Professional Fitness tracker app to track heart rate, weight, daily steps, calories burned, and so on. Who This Book Is For This book is targeted at Android developers who want to get a good understanding of sensors and write sensor-based applications, or who want to enhance their existing applications with additional sensor functionality. A basic knowledge of Android development is required What You Will Learn Learn about sensor fundamentals, different types of sensors, and the sensor co-ordinate system Understand the various classes, callbacks, and APIs of the Android Sensor framework Check all the available sensors on an Android device and know their individual capabilities—for example, their range of values, power consumption, and so on. Implement sensor fusion using two or more sensors together and learn to compensate for the weakness of one sensor by using the strength of another Build a variety of sensor based, real-world applications such as Weather, Pedometer, Compass, Driving Events Detection, Fitness Tracker, and so on. Get to know about wake up and non-wake up sensors, wake locks, and how to use sensor batch processing along with the sensor hardware FIFO queue Develop efficient battery and processor algorithms using raw sensor data to solve real-world problems Connect to a variety of remote sensors such as body weight measurement and body fat percentage measurement using the Google Fit platform from your Android app In Detail Android phones available in today’s market have a wide variety of powerful and highly precise sensors. Interesting applications can be built with them such as a local weather app using weather sensors, analyzing risky driving behavior using motion sensors, a fitness tracker using step-counter sensors, and so on. Sensors in external devices such as Android Watch, Body Analyzer & Weight Machine, Running Speed Cell, and so on can also be connected and used from your Android app running on your phone. Moving further, this book will provide the skills required to use sensors in your Android applications. It will walk you through all the fundamentals of sensors and will provide a thorough understanding of the Android Sensor Framework. You will also get to learn how to write code for the supportive infrastructure such as background services, scheduled and long running background threads, and databases for saving sensor data. Additionally, you will learn how to connect and use sensors in external devices from your Android app using the Google Fit platform. By the end of the book, you will be well versed in the use of Android sensors and programming to build interactive applications. Style and approach A step-by-step and easy-to-follow guide that focuses on utilizing sensors to perform certain tasks. After covering the fundamentals in the first chapter, the book develops the concepts by building a real-world, sensor-based application in subsequent chapters.

Monitor your Docker containers and their apps using various native and third-party tools with the help of this exclusive guide!About This Book Get the only book that covers multiple methods to monitoring Docker Containers -your one-stop solution to all your Docker monitoring needs Learn how to implement third-party tools such as Datalog, cAdvisor, and more with this example-rich, hands-on guide Learn how to efficiently monitor Docker containers and get an edge over other administrators while maintaining apps on these containers Who This Book Is For This book is for DevOps engineers and system administrators who manage Docker containers and want to better manage these containers using expert techniques and methods and better maintain applications built on Docker. What You Will Learn Discover the tools built into Docker to gain an insight into your containers’ performance Augment Docker’s built-in tools with modern tools such as cAdvisor from Google, SysDig by Draios, and Soundcloud’s Prometheus Integrate the monitoring of your containers with more traditional monitoring solutions such as Zabbix Take advantage of the various SaaS offerings from third parties to move monitoring away from your local infrastructure and into the cloud Discover the various ways to ship your applications’ logs from the container to a central logging service Get the most out of your application and resources with the right implementation of your monitoring method In Detail This book will show you how monitoring containers and keeping a keen eye on the working of applications helps improve the overall performance of the applications that run on Docker. With the increased adoption of Docker containers, the need to monitor which containers are running, what resources they are consuming, and how these factors affect the overall performance of the system has become the need of the moment. This book covers monitoring containers using Docker's native monitoring functions, various plugins, as well as third-party tools that help in monitoring. Well start with how to obtain detailed stats for active containers, resources consumed, and container behavior. We also show you how to use these stats to improve the overall performance of the system. Next, you will learn how to use SysDig to both view your containers performance metrics in real time and record sessions to query later. By the end of this book, you will have a complete knowledge of how to implement monitoring for your containerized applications and make the most of the metrics you are collecting Style and approach This is an easy-to-follow guide with plenty of hands-on examples that can be executed both on your local machine and externally hosted services.

Walmart's OneOps is an open source DevOps platform that is used for cloud and application lifecycle management. It can manage critical and complex application workload on any multi cloud-based infrastructure and revolutionizes the way administrators, developers, and engineers develop and launch new products. This practical book focuses on real-life cases and hands-on scenarios to develop, launch, and test your applications faster, so you can implement the DevOps process using OneOps. You will be exposed to the fundamental aspects of OneOps starting with installing, deploying, and configuring OneOps in a test environment, which will also come in handy later for development and debugging. You will also learn about design and architecture, and work through steps to perform enterprise level deployment. You will understand the initial setup of OneOps such as creating organization, teams, and access management. Finally, you will be taught how to configure, repair, scale, and extend applications across various cloud platforms. What you will learn ?See how to install OneOps ?Configure OneOps including creating and configuring organization and teams ?Work through practical deployment scenarios ?Maintain OneOps environments including backups and logs ?Build custom components for OneOps ?Extend OneOps by calling the REST API

The book requires no prior knowledge of JavaScript and works from the ground up to give you a thorough grounding in this powerful language. If you do already know some JavaScript, you will find plenty of eye-openers as you discover just what the language can do. This book takes a do-it-yourself approach when it comes to writing code, because the best way to really learn a programming language is by writing code. You are encouraged to type code into Firebug's console, see how it works and then tweak it and play around with it. There are practice questions at the end of each chapter to help review what you have learned.

This book is the ideal introduction to theming with Drupal 5. If you want to create a striking new look for your Drupal website, this book is for you. Starting from the basics of theme setup and configuration, you will learn about the Drupal theming architecture and the PHPTemplate engine, and then move on to modifying existing themes and building new themes from scratch. Included is a complete guide to the various style sheets and themeable functions in Drupal 5, making this book a valuable resource even to experienced theme developers. It covers: Creating custom templates Basics of theming in pure PHP Modifying an existing PHPTemplate theme" a step-by-step guide Creating a new PHPTemplate theme" a step-by-step guide Working with forms The main requirements to make use of this book are knowledge of HTML, CSS, and a touch of creativity! Although this book aims to make Drupal theming accessible to designers, theming in Drupal 5 involves writing some PHP code, and a basic knowledge of PHP will be helpful.

This book is written for PHP developers who want to add custom features to Drupal. You will need to know the basics of PHP and MySQL programming, but no experience of programming Drupal is required, although you will be expected to be familiar with the basic operation of Drupal.

This book is for those who want to build sophisticated Java web applications quickly and easily. It assumes that the reader is reasonably comfortable with the Java programming language, but no knowledge of web technologies is needed. For experienced Servlet, JSP, or Struts developers, the book will show an alternative way that will allow them to raise their productivity to an incomparable level. With this book you will see that a contemporary component-based framework can be easy to learn and a pleasure to work with.

This book is a practical tutorial with five detailed and carefully explained case studies to build new and effective mashup applications. If you feel confident with your PHP programming, familiar with the basics of HTML and CSS, unafraid of XML, and interested in mashing things up, this is the book for you! There are a lot of formats and protocols, web services and web APIs encountered in this book ” you do not need to know anything about them or about AJAX; you will find all you need in the book.

This book takes a step-by-step approach, presenting the main features of CodeIgniter in a systematic way and explaining them clearly. It is packed with examples, ideas, and screenshots to help you master this great framework. The code examples are very practical so you can even use them in your own projects. By following this book, you can use CodeIgniter in the best possible way and maximize your learning. This book is for developers who are new to CodeIgniter. Basic skills in PHP and MySQL are required, but only rudimentary object-oriented knowledge is needed. If you're looking for a better way to develop PHP applications, or want to find out more about the CodeIgniter framework as a viable option for one of your own projects, this book will help you.

This book takes a practical approach to integrating PHP and jQuery, showing examples of every point discussed. All examples are written such that you should be able to copy out the code into your own projects and see immediate results, no matter what your experience with JavaScript. You will find projects developed within a chapter, building them up step-by-step, describing the process and thought that goes into it. Minimal requirements are needed on the server-side, so the examples should work with any setup. This book is for PHP application developers who want to improve their user interfaces through jQuery's capabilities and responsiveness. Whether you are familiar with jQuery or have only dabbled a little with JavaScript, this book will provide you with numerous practical examples of how to improve your application.

This book is a guide to building a rich web application using Grails. The approach taken for building the application is incremental and iterative; each chapter will produce a working addition to the application, or iterate over existing features, as well as introduce and carefully explain the new part of the Grails framework used. The book does not go into exhaustive de*ions of every detail of Grails. While there is a lot of code in the book, there are very few large code listings. As you will find, it is not necessary to write reams of code to get results using Groovy and Grails. This book is aimed at Java web developers looking for ways to build web applications quickly, and wanting to find out how it's done quickly. If you are frustrated with integrating the many different frameworks that are available for web development and want to get on with building slick web applications for your users, then this book is for you. Grails is built on the Groovy language, but experience in Groovy is not required, as you will learn enough about Groovy to understand how to use Grails.

The simple and clear approach is ideal for beginners to Django. Packed with examples and screenshots, this book will help you learn the features of Django 1.0 and help you build a dynamic website using those features. This book is for web developers who want to learn to build a complete site with Web 2.0 features, using the power of a proven and popular development system, Django, but do not necessarily want to learn how the complete framework functions in order to do this. Basic knowledge of Python development is required for this book, but no knowledge of Django is expected.

This is a beginner-level book, which will introduce Nagios to System Administrators who are interested in monitoring their systems. The focus is on teaching system administrators to secure their systems in a much improved manner incorporating the newer features of Nagios. It will teach Nagios beginners the basics of installation and configuration of version 3; it will show professionals who have already worked on earlier versions of Nagios the new features of Nagios like inheritance and also the new internal functions like better check scheduling. The target readers for this book are System Administrators interested in using Nagios. This book will introduce Nagios with the new features of Version 3 for System Administrators.

The book looks at the main functional areas of Moodle that have significant new features, explains the new features and how to use them. It draws attention to significant differences from how things used to behave, and gives the reader an idea of the kind of consequences these changes will bring to them. If you are an existing Moodle user, tutor, or administrator, then this book is for you. You are expected to be familiar with the operation of Moodle.

This book introduces the OSM project, its aims and objectives, and its history, then guides you through the process of gathering, editing, and using OpenStreetMap data using a series of real-world examples. This book is the perfect aid for geographic-information professionals interested in using OpenStreetMap in their work and web designers and developers who want to include mapping in their sites, and want a distinctive style. It is for you if you have a need to use maps and geographic data for work or leisure, and want accurate, up-to-date maps showing the information you're interested in, without details you don't need. If you want to use maps for navigation and want more or less detail than traditional printed maps give this book is perfect for you.

This step-by-step tutorial shows the reader how to build an ASP.NET Content Management System from scratch. You will first learn the basics of a content management system and how to set up the tools you need to build your site. Then, you start building your site, setting up users, and adding content to your site. You will be able to edit the content of your site and also manage its layout all by yourself. Towards the end, you will learn to manage your site from a single point and will have all the information you need to extend your site to make it more powerful. Filled with plenty of code snippets and screen images to keep you on track as well as numerous additional samples to show you all the exciting alternatives to explore, this book prepares you for all the challenges you can face in development. This book is for beginner to intermediate ASP.NET users who have managed to learn Visual Web Developer and want to take on their first real-world application. It will help those who have used SQL Server Express, completed a few sample projects, and now wish to explore a Content Management System.

The book is written from a developer perspective and uses an example-driven approach with extensive code samples on each topic, for easy understanding and learning. It starts with some basic concepts of portals, before going into the features and implementation of JBoss Portal and eventually discussing some concepts for advanced use. Each chapter provides a blend of just enough basic concepts to start building applications and detailed configurations for reference. This book is for portal developers, portal administrators, designers and architects working on the Java platform, who want to build web portal solutions. The book doesn't expect an expert knowledge of portal or JEE technologies, but does presume a basic understanding of web technologies and the Java/JEE platform. However, the concepts are lucid enough that any competent developer can easily find immediate value in the book and start creating dynamic portal applications.

This book will give you a strong, hands-on approach to security. It starts out with the most basic of considerations such as choosing the right hosting sites then moves quickly into securing the Joomla! site and servers. This is a security handbook for Joomla! sites. It is an easy-to-use guide that will take you step by step into the world of secured websites. This book is a must-read for anyone seriously using Joomla! for any kind of business, ranging from small retailers to larger businesses. With this book they will be able to secure their sites, understand the attackers, and more, without the drudging task of looking up in forums, only to be flamed, or not even find the answers. Prior knowledge of Joomla! is expected but no prior knowledge of securing websites is needed for this book. The reader will gain a moderate to strong level of knowledge on strengthening their sites against hackers.

Gain a deep understanding of the complexity of data structures and algorithms and discover the right way to write more efficient code About This Book ?This book provides complete coverage of reactive and functional data structures ?Based on the latest version of Java 9, this book illustrates the impact of new features on data structures ?Gain exposure to important concepts such as Big-O Notation and Dynamic Programming Who This Book Is For This book is for Java developers who want to learn about data structures and algorithms. Basic knowledge of Java is assumed. What You Will Learn ?Understand the fundamentals of algorithms, data structures, and measurement of complexity ?Find out what general purpose data structures are, including arrays, linked lists, double ended linked lists, and circular lists ?Get a grasp on the basics of abstract data types―stack, queue, and double ended queue ?See how to use recursive functions and immutability while understanding and in terms of recursion ?Handle reactive programming and its related data structures ?Use binary search, sorting, and efficient sorting―quicksort and merge sort ?Work with the important concept of trees and list all nodes of the tree, traversal of tree, search trees, and balanced search trees ?Apply advanced general purpose data structures, priority queue-based sorting, and random access immutable linked lists ?Gain a better understanding of the concept of graphs, directed and undirected graphs, undirected trees, and much more In Detail Java

Learn to really THINK about CSS, and how to create CSS that endures continual iteration, multiple authors, and yet always produces predictable results About This Book Address the problems of CSS at scale, avoiding the shortfalls of scaling CSS. The shortfalls of conventional approaches to scaling CSS. Develop consistent and enforceable selector naming conventions with ECSS. Learn how to organize project structure to more easily isolate and decouple visual components. Who This Book Is For This is a book for working CSS authors involved in large projects. This is a book that tackles create enduring CSS for large-scale projects. What You Will Learn The problems of CSS at scale—specificity, the cascade and styles intrinsically tied to element structure. The shortfalls of conventional approaches to scaling CSS. The ECSS methodology and the problems it solves. How to develop consistent and enforceable selector naming conventions with ECSS. How to organise project structure to more easily isolate and decouple visual components. How to handle state changes in the DOM with ARIA or override selectors. How to apply ECSS to web applications and visual modules. Considerations of CSS tooling and processing: Sass/PostCSS and linting. Addressing the notion of CSS selector speed with hard data and browser representative insight In Detail Learn with me, Ben Frain, about how to really THINK about CSS and how to use CSS for any size project! I'll show you how to write CSS that endures continual iteration, multiple authors, and yet always produces predictable results. Enduring CSS, often referred to as ECSS, offers you a robust and proven approach to authoring and maintaining style sheets at scale. Enduring CSS is not a book about writing CSS, as in the stuff inside the curly braces. This is a book showing you how to think about CSS, and be a smarter developer with that thinking! It's about the organisation and architecture of CSS—the parts outside the braces. I will help you think about the aspects of CSS development that become the most difficult part of writing CSS in larger projects. You’ll learn about the problems of authoring CSS at scale—including specificity, the cascade and styles intrinsically tied to document structure. I'll introduce you to the ECSS methodology, and show you how to develop consistent and enforceable selector naming conventions. We'll cover how to apply ECSS to your web applications and visual model, and how you can organize your project structure wisely, and handle visual state changes with ARIA, providing greater accessibility considerations. In addition, we'll take a deep look into CSS tooling and process considerations. Finally we will address performance considerations by examining topics such as CSS selector speed with hard data and browser-representative insight. Style and approach Learn with me, Ben Frain, about how to really think about CSS. This is a book to deal with writing CSS for large-scale, rapidly changing web projects and applications. This isn't a book about writing CSS, as in the stuff inside the curly braces - this is a book about the organisation and architecture of CSS; the parts outside the braces!