The why and how of moving to PHP 5.4/5.5

This document summarizes the history and evolution of PHP from its origins in 1995 as a CGI scripting language through its current version 5.5 released in 2013. It describes some of the major milestones like the introduction of the Zend Engine in PHP 4 that improved performance and compilation, and the transition to a true object model in PHP 5. It highlights new features in PHP 5.5 like the password hashing API and generators. Performance benchmarks show PHP 5.5 is faster than previous versions with speed improvements up to 20% from PHP 5.3. The document promotes contributing to the open source PHP project and lists some of the key areas and ways people can get involved.

Type hints were introduced with PHP 5. PHP 7 will add the ability to type hint on scalars and even to explicitly state what type will be returned from the function. This talk briefly goes over these added features to PHP 7.

PHP 5.5 is the latest version of PHP that includes new features like a password hashing API, generators syntax, and a finally keyword for exceptions. It also includes performance improvements and integration with the OPcache for opcode caching. Some changes in PHP 5.5 include deprecating the mysql extension and preg_replace /e modifier.

The PHP 7 release is just around the corner, bringing some much-desired changes and improvements to the language. However, many developers simply aren't aware of what's coming. We'll remedy this by checking out the new "spaceship operator," demonstrating how static type hints produce clean code, and using anonymous classes to quickly implement interfaces on the fly. Attendees will also learn about breaking changes and "gotchas" to watch out for when making the upgrade and will receive pointers on getting started with PHP 7 today.

The document discusses mysqlnd, a PHP extension that replaces libmysql. Mysqlnd provides significant memory savings when processing result sets by avoiding duplicating result data in memory. It also includes detailed statistics collection and an extensible plugin architecture. Mysqlnd is now the default MySQL connector used by PHP.

This document discusses using Zend Framework for building web applications. It describes how Zend_Application provides dependency injection and configuration without requiring objects. It also covers using Zend_Db for database access, Zend_Controller for routing, and Zend_Translate for internationalization. Validation is discussed, including using Zend_Validate with Zend_Translate to internationalize error messages.

PHP 7 is scheduled for release in November 2015 and will be a major new version that introduces many new features and changes. Some key points include: PHP 7 will provide improved performance through a new Zend Engine 3.0 and full support for 32-bit and 64-bit platforms. New features include scalar type declarations, return type declarations, new operators like the null coalesce operator and the spaceship operator, and anonymous classes. The release will also change some behaviors and remove deprecated features.

The document summarizes the PHP lifecycle when used with Apache. It describes the request process from the client request, Apache parsing the request and handling it, to PHP parsing, compiling and executing the script. It provides code examples from key points in the PHP parsing and execution process within the Zend engine. Sample requests are outlined from client to server processing and the PHP opcodes and execution.

This document provides an overview of the PHP request lifecycle, including how a PHP file is read, parsed, compiled, executed, and outputs. It discusses how PHP is handled by different web servers like Apache, Nginx, and FastCGI. It also covers topics like opcode caching with APC, profiling PHP performance with Xdebug, and analyzing PHP opcodes with Vulcan Logic Dumper.

This document discusses PHP 7 and alternative PHP implementations like HHVM. It provides an overview of PHP 7 features like a reworked engine and true 64-bit support. It also discusses alternative implementations like HHVM, which uses a just-in-time compiler to compile PHP to native machine code, and Zephir, which allows PHP code to be compiled to C code for performance benefits. Finally, it shares benchmarks showing performance improvements of these implementations over PHP 5.

This document introduces PHP 5.4 and provides an overview of new features and changes from previous versions. Some key additions in PHP 5.4 include improved performance, always available short echo tags, closure support for $this, class member access on instantiation, and a built-in development web server. The document also discusses how to switch to PHP 5.4 on Gentoo Linux and provides useful links for more information.

Version 1.2 of the document introduces new versions of PHP including PHP 5.6 and PHP 7. PHP 5.6 included new features like constant expressions, variadic functions, and exponentiation. PHP 7 included major performance improvements and introduced scalar type declarations, return type declarations, and new operators like the nullsafe operator and spaceship comparison operator. PHP 7 also removed alternative PHP tags and deprecated old PHP codes. Future versions of PHP will focus on additional type declarations and other new language features.

Intro talk on the Percona Toolkit, as set of tools for managing things DBAs and developers need to do with MySQL.

The document discusses PHP performance and dives into the internals of how PHP works, including details on the Zend engine, compilation process involving lexing, parsing and compiling to opcodes, and execution through opcode interpretation by the virtual machine. It provides examples and tips on optimizing performance by reducing compilation overhead through opcode caching, profiling execution to find bottlenecks, and analyzing PHP functions at the C level to optimize system calls and memory usage.

This document provides tips, tricks, and examples of common gotchas in PHP programming. It demonstrates unexpected behaviors that can occur due to PHP's highly dynamic nature and weakly typed system. A series of code snippets are shown with their expected versus actual outputs to illustrate issues one may encounter with variables, strings, arrays, and type coercion. The document also provides best practices for PHP development and an overview of common topics covered in the PHP certification exam.

This document discusses integrating test automation and code coverage for web service applications. It introduces Postman for calling web services and testing responses, and Jenkins for build automation and tracking test results over time. It then demonstrates setting up a test automation workflow using these tools on a sample Laravel application, including starting and stopping coverage collection, running tests from Postman and PHPUnit, and merging the results. Some best practices and philosophies around test automation and code coverage are also discussed.

Perlのモジュールを公開するときに気をつけておいた方がよい個のこと This document provides tips for publishing Perl modules to CPAN. It discusses things to be aware of such as distributions being permanently archived on BackPAN even if deleted, CPAN accepting almost anything, and several testing services that can improve modules like PAUSE, CPAN Testers, CPANTS, and more. It also covers best practices for metrics evaluated by these services around availability, integrity, file layout, prerequisites and more. Developers are encouraged to use better tools from the Perl Toolchain Gang to avoid issues.

The document provides rules and tools for debugging. It discusses understanding the system, making failures reproducible, quitting thinking and closely observing behaviors, dividing problems into smaller pieces, changing one thing at a time, and maintaining an audit trail of changes. Tools mentioned include Xdebug, Selenium, PHPUnit, strace, and source control systems. Logging, instrumentation, and testing techniques are also covered.

Finding and fixing bugs is a major chunk of any developers time. This talk describes the basic rules for effective debugging in any language, but shows how the tools available in PHP can be used to find and fix even the most elusive error

Practical tips for dealing with projects involving legacy code. Covers investigating past projects, static analysis of existing code, and methods for changing legacy code. Presented at PHP Benelux '10

This document summarizes Derick Rethans' presentation on the Xdebug debugging tool for PHP. It introduces Xdebug, how to install it, and how to use its various debugging features like setting breakpoints, viewing variables, profiling code, and more. The presentation provides code examples and instructions for integrating Xdebug with IDEs to enable remote debugging of PHP applications.

PHP7 brings a tremendous number of new features. Tonight, we will take a look at the null coalesce operator, new execution order (uniform variable syntax), new exceptions and more.

The document provides an overview of Symfony2, an open-source PHP web application framework. It describes Symfony2 as a set of decoupled and cohesive components including routing, templating, form handling, and more. It also outlines Symfony2's support for modern best practices like dependency injection and an object-oriented approach to web application development using the Model-View-Controller pattern.

With versions stretching from 5.3 to 5.6, PHP has several major published versions, that require special attention when migrating. Beyond checking for compilation, the code must be reviewed to avoid pitfalls like obsoletes functions, new features, change in default parameters or behavior. We'll set up a checklist of such traps, and ways to find them in the code and be reading for PHP 5.6.

This talk was designed for PHP developers with limited or no experience in unit testing. I focus on describing the problem of fear-driven-development, and how test-driven-development can be used to improve the quality of your code.

The document provides tips for optimizing PHP code, including using string functions instead of regular expressions where possible, passing references to reduce memory usage, using persistent database connections, and checking mysql_unbuffered_query() for faster queries. It also discusses HTTP requests and responses, cookie expiry, references in PHP, returning references from functions, and the debug_backtrace() function. The document concludes with tips for improving security such as checking for uninitialized variables, validating user input, and restricting access to included files.

This document summarizes some new features in PHP 5.4: - Array syntax can now be written more concisely using square brackets instead of array functions. - PHP 5.4 includes a built-in web server for development purposes, allowing PHP scripts to be run without Apache. - Traits allow sharing of methods across classes to reduce code duplication, similar to mixins in Ruby. - Closures now support accessing properties of the enclosing class scope via $this.

The document introduces Symfony2, an open-source PHP web application framework. It discusses key components like the dependency injection container, routing, and an object-oriented approach to handling requests and responses. It presents Symfony2's implementation of the MVC pattern using bundles, controllers and templates.

The document discusses Symfony2, an open-source PHP web application framework. It provides an overview of its components including routing, dependency injection, and templating. It also describes how Symfony uses an MVC architecture and emphasizes loose coupling and flexibility.

This document summarizes maintaining state between servers using a session server. It discusses the need for sessions in stateless HTTP, limitations of built-in PHP sessions, and how a central session server addresses these issues. It then covers building a session server in PHP using sockets and processes (PCNTL), and implementing a full-featured session server using the Net_Server and HTTP_SessionServer classes along with a client library.

This document discusses several new features introduced in PHP 7 including: 1. Exception handling was improved with a new exception hierarchy and errors are now catchable. 2. Scalar type declarations were added allowing functions to declare and enforce parameter and return value types like int, float, bool, etc. 3. The null coalescing operator ?? was added to simplify checking for null values and providing defaults. 4. The spaceship operator <=> was added for combined comparison of values returning -1, 0, or 1. Overall PHP 7 focused on major internal improvements and optimizations while maintaining backwards compatibility and adding several new features to further strengthen type safety.

This workshop is a hands-on training where a real Zend Framework application is used as an example to start improving QA using tools to test, document and perform software metric calculations to indicate where the software can be improved. I also explain the reports produced by a CI system.

The document discusses vulnerabilities in random number generation in PHP. It summarizes several vulnerabilities discovered between 2008-2012 related to predictable random numbers generated by PHP functions like mt_rand(). It also discusses how PHP developers have been slow to address these issues. The document then provides step-by-step explanations of how to exploit vulnerabilities in four different CMS platforms - OpenCart, DataLife Engine, UMI.CMS, and OpenCart again - by predicting random values used for tasks like password resets and session IDs.

The document discusses vulnerabilities in random number generation in PHP. It summarizes several vulnerabilities discovered between 2008-2012 related to predictable random numbers generated by PHP functions like mt_rand(). It also discusses how PHP developers have been slow to address these issues. The document then provides step-by-step explanations of how to exploit vulnerabilities in four different CMS platforms - OpenCart, DataLife Engine, UMI.CMS, and OpenCart again - by predicting random values used for tasks like password resets and session IDs.

How do you build an API that developers love building and consumers love using? There's a lot that goes into creating a great API. This presentation shares some tips & tricks, architectural patterns, and best practices that go into building a great engineering environment around your API. Talk presented on Oct 18, 2017 at PloneConf2017. Topics covered by this talk: Intuitive Practices: standardization, configuration/environment files, ORMs, SQLAlchemy, database migrations, Alembic, database seeds, requirements.txt, package management, dependency management, setup scripts Durable Practices: Unit Tests, virtual environments, flush vs commit, error rollbacks, request lifecycle, session lifecycle Flexible Practices: Directory structures, application factories, blueprints, python debugger Reliable Practices: Logging, progressive rollouts, slack hooks, cron health checks, api versioning, api analytics Use Friendly Practices: Endpoint design, endpoint documentation, debugging tools, postman Speed Practices: Python profiling, Bulk SQL Inserts, caching

Learn how symfony can make your life simple, especially if you want to develop web applications in a professional way. Warning! Contains PHP code...