The e-commerce is one of the main points of modern software. The e-commerce sector is growing about 15% annually, which is why it deserves special attention from software engineers. Speaking of e-commerce and open source at once is not easy. For many years we have identified the concept with pain and despair, so we must work urgently to change the way we understand it should be. What are the important points to consider? Where do we find the line between architecture and pragmatism? Are we walking in the right direction? How can Symfony help in this?
With PHP 5.6 there are some great new features. We'll go over some of these features and how to use them. This includes variadic functions, constant scalar expressions, exponentiation, splat operator, use const/function, php input, phpdbg, and more. We will also cover deprecated features in PHP 5.6. Want to get involved with upcoming release? I'll show you how you can 'make_test' to start helping out.
PHP Optimization can increase a client’s site performance and leverage your plugin design and capacity. Writing your code with PHP in mind first will help you build stable scalable plugins and applications. It will also save you time and energy after product release. Practical tips will be shared in this session for you to implement in projects immediately. Yes, there will be code.
The why and how of moving to PHP 5.4/5.5Wim Godden
With PHP 5.5 out and many production environments still running 5.2 (or older), it's time to paint a clear picture on why everyone should move to 5.4 and 5.5 and how to get code ready for the latest version of PHP. In this talk, we'll migrate an old piece of code using some standard and some very non-standard tools and techniques.
The e-commerce is one of the main points of modern software. The e-commerce sector is growing about 15% annually, which is why it deserves special attention from software engineers. Speaking of e-commerce and open source at once is not easy. For many years we have identified the concept with pain and despair, so we must work urgently to change the way we understand it should be. What are the important points to consider? Where do we find the line between architecture and pragmatism? Are we walking in the right direction? How can Symfony help in this?
With PHP 5.6 there are some great new features. We'll go over some of these features and how to use them. This includes variadic functions, constant scalar expressions, exponentiation, splat operator, use const/function, php input, phpdbg, and more. We will also cover deprecated features in PHP 5.6. Want to get involved with upcoming release? I'll show you how you can 'make_test' to start helping out.
PHP Optimization can increase a client’s site performance and leverage your plugin design and capacity. Writing your code with PHP in mind first will help you build stable scalable plugins and applications. It will also save you time and energy after product release. Practical tips will be shared in this session for you to implement in projects immediately. Yes, there will be code.
The why and how of moving to PHP 5.4/5.5Wim Godden
With PHP 5.5 out and many production environments still running 5.2 (or older), it's time to paint a clear picture on why everyone should move to 5.4 and 5.5 and how to get code ready for the latest version of PHP. In this talk, we'll migrate an old piece of code using some standard and some very non-standard tools and techniques.
Being functional in PHP (PHPDay Italy 2016)David de Boer
Functional programming, though far from new, has gained much traction recently. Functional programming characteristics have started to appear in the PHP world, too. Microframeworks such as Silex and Slim, middleware architectures such as Stack and even standards such as PSR-7 rely on concepts such as lambdas, referential transparency and immutability, all of which come from functional programming. I’ll give you a crash course in Erlang, a pragmatic functional language to make you feel familiar with the functional paradigm. By comparing code samples between Erlang and PHP, you’ll find out how you can employ functional programming in your PHP applications where appropriate. You’ll see that functional programming is nothing to be scared of. On the contrary, understanding its concepts broadens your programming horizon and provides you with valuable solutions to your problems.
PHP is one of the most popular open source programming languages in the world. It powers some of the highest traffic sites in the world, and at the same time it powers some of the lowest traffic sites in the world. But have you ever wondered how it works under the hood? Have you been overwelmed by the thought of looking at the C code that runs PHP? Well, this talk is for you!
We're going to explore how PHP works under the hood, by looking at a PHP implementation of it: PHPPHP! Have you ever wondered what an OPCODE Cache is really doing? Have you ever wondered what a T_PAAMAYIM_NEKUDOTAYIM is? Have you ever wondered why an interpreted languages has a compiler? We'll explore all of these topics, and more! And the best part of it all? You don't need to know C to understand the details! Using PHPPHP, we can explore the language details in a high level language, where things like memory management don't get in the way of the real content. If you've ever wanted to know how PHP works, this is the talk for you!
The new features of PHP 7 - Enrico Zimuel - Codemotion Milan 2016Codemotion
In this talk I'll present some of the new features of PHP 7. I will present the scalar type and return type declarations, the spaceship and null coalescing operators, the anonymous classes, the new Error exception, the security features, etc. Moreover, I will present some benchmarks and use cases of PHP 7 regarding the huge performance improvement.
Presented at Codemotion 2016. Discusses the beginner-level dynamics of the performance-improved PHP 7. Gain expanded knowledge of the spaceship and null coalescing operators, anonymous classes, the new error exception, and the security features of PHP 7.
Let's look at ways how to make PHP applications remember what your user did on the last web page.
The first half will be about the classic PHP sessions, what the SessionHandlerInterface is about and why all of it's methods are important for a successful alternative implementation.
The second half will explore alternatives to the problems created using PHP sessions, including alternatives to sessions: Splitting the problem on the server or moving the data to the client.
Best Practices and Performance Studies for High-Performance Computing ClustersIntel® Software
This session focuses on key system tunables for maximizing application performance of high-performance computing (HPC) workloads, and addresses porting, optimizing, and running applications to maximize performance. We present practical tips and techniques for building and running applications on multicore processors. We analyze sample performance and scaling data from various applications, and identify the best options.
Caching and tuning fun for high scalabilityWim Godden
Caching has been a 'hot' topic for a few years. But caching takes more than merely taking data and putting it in a cache : the right caching techniques can improve performance and reduce load significantly. But we'll also look at some major pitfalls, showing that caching the wrong way can bring down your site. If you're looking for a clear explanation about various caching techniques and tools like Memcached, Nginx and Varnish, as well as ways to deploy them in an efficient way, this talk is for you.
With PHP 7.2 recently released and PHP 5.3 and 5.4 still accounting for over 40% of all production environments, it's time to paint a clear picture on not just why everyone should move to 7.0 (or preferably 7.1), but on how to get code ready for the latest version of PHP.
Using the version compatibility checker for PHP_CodeSniffer and a few simple step-by-step instructions, upgrading old code to make it compatible with the latest PHP versions becomes actually really easy. In this talk, we'll migrate an old piece of code and get rid of the demons of the past and ready for the present and future.
Apache est le serveur Web le plus utilisé sur la planète. Né en 1995, Apache HTTPD est aujourd'hui massivement utilisé pour supporter des applications PHP.
Cependant, peu de développeurs connaissent vraiment cette machine aussi complexe que robuste qui supporte leur langage fétiche : PHP.
Il n'est pas rare de voir des codes PHP exécutant des actions qu'Apache sait gérer en une seule ligne, de manière beaucoup plus efficace.
Nous parlerons donc généralités, HTTP, Cache, Proxing et nous passerons en revue les différentes manière de coupler Apache à PHP (mod_php, CGI et FCGI, mais aussi mpm_peruser, mpm_itk, suexec, suphp).
Meet up Milano 14 _ Axpo Italia_ Migration from Mule3 (On-prem) to.pdfFlorence Consulting
Quattordicesimo Meetup di Milano, tenutosi a Milano il 23 Maggio 2024 dalle ore 17:00 alle ore 18:30 in presenza e da remoto.
Abbiamo parlato di come Axpo Italia S.p.A. ha ridotto il technical debt migrando le proprie APIs da Mule 3.9 a Mule 4.4 passando anche da on-premises a CloudHub 1.0.
Bridging the Digital Gap Brad Spiegel Macon, GA Initiative.pptxBrad Spiegel Macon GA
Brad Spiegel Macon GA’s journey exemplifies the profound impact that one individual can have on their community. Through his unwavering dedication to digital inclusion, he’s not only bridging the gap in Macon but also setting an example for others to follow.
This 7-second Brain Wave Ritual Attracts Money To You.!nirahealhty
Discover the power of a simple 7-second brain wave ritual that can attract wealth and abundance into your life. By tapping into specific brain frequencies, this technique helps you manifest financial success effortlessly. Ready to transform your financial future? Try this powerful ritual and start attracting money today!
APNIC Foundation, presented by Ellisha Heppner at the PNG DNS Forum 2024APNIC
Ellisha Heppner, Grant Management Lead, presented an update on APNIC Foundation to the PNG DNS Forum held from 6 to 10 May, 2024 in Port Moresby, Papua New Guinea.
1.Wireless Communication System_Wireless communication is a broad term that i...JeyaPerumal1
Wireless communication involves the transmission of information over a distance without the help of wires, cables or any other forms of electrical conductors.
Wireless communication is a broad term that incorporates all procedures and forms of connecting and communicating between two or more devices using a wireless signal through wireless communication technologies and devices.
Features of Wireless Communication
The evolution of wireless technology has brought many advancements with its effective features.
The transmitted distance can be anywhere between a few meters (for example, a television's remote control) and thousands of kilometers (for example, radio communication).
Wireless communication can be used for cellular telephony, wireless access to the internet, wireless home networking, and so on.
2. PHP 7 new internals
Full 64bit support
New Thread Safety mechanism
New engine memory management
New optimized executor
New optimized structures
3. PHP 7 full 64bit engine
PHP was known to be platform dependent on this crucial
criteria
LP64: Linux64 (and most Unixes)
LLP64: Windows64
ILP64: SPARC64
http://www.unix.org/whitepapers/64bit.html
string size signed integer
Platform int long
LP64 32 64
LLP64 32 32
ILP64 64 64
4. PHP 7 full 64bit engine
PHP 7 now uses platform independant sizes
Strings > 2^31
Real 64bit userland PHP integers
LFS (Large File Support)
64bits hash keys
Whatever your platform (OS) : consistency
5. PHP 7 new memory management
PHP 7 has reworked every memory management
routine
Use less heap and more stack
Zvals are stack allocated
refcount management more accurate
Scalar types are no longer refcounted
Redevelop a new MM heap, more optimized
Based on sized pools (small, medium and large)
CPU cache friendly
Concepts borrowed from tcmalloc
6. PHP 7 thread safety
PHP7 has reworked its thread safety mechanism
routine
PHP 5 thread safety routine had a ~20% perf impact
This is no more the case in PHP 7
Still some more work to do, but lighter
TLS is now mature, and it is used
For PHP under Windows (mandatory)
For PHP under Unix, if asked for (usually not)
7. PHP 7 new structures
Critical structures have been reworked
More memory friendly
More CPU friendly (data alignment, cache friendly)
Strings are now refcounted
Objects now share their refcount with other types
Wasn't the case in PHP5
The engine Executor uses a full new stack frame to
push and manage arguments
Function calls have been heavilly reworked
9. PHP 7 performances
A lot of tweaks have been performed against PHP 7
code performances.
A lot of internal changes - invisible to userland - have
been performed to have a more performant language
CPU cache misses have been heavilly worked on
Spacial locality of code is improved
This results in a language beeing at least twice fast
and that consumes at least twice less memory
13. PHP 7 performances
Take care of synthetic benchmarks
They only demonstrates basic use cases
Run your own benchmarks
Run your own applications against PHP 7
On a big average, you can expect dividing CPU
time and memory consumption by a factor of 2
compared to PHP-5.6, probably even more than
2