LOL. But before you upgrade, you should make sure it's being supported wherever you use it. Its usage is pretty straightforward. Before PHP 8, union types could only be specified in phpdoc annotations, as shown in the following example from the RFC: Now, the Union types 2.0 RFC proposes to add support for union types in function signatures, so that we won’t rely on inline documentation anymore, but would define union types with a T1|T2|... syntax instead: “Supporting union types in the language allows us to move more type information from phpdoc into function signatures, with the usual advantages this brings: Union types support all available types, with some limitations: You can read more about Union Types V2 in the RFC. This collection of PHP tutorials will help you become a more well-rounded developer. This includes updates to the following projects: For a full list, check out Laravel's Full PHP 8.0 Support PR. It will compile and cache some sections of code at runtime so that the compiled version can be used instead of the interpreted version. Auth0. For a closer view at Named Arguments, with constraints, backward incompatibilities and several examples, see the Named Arguments RFC. Besides breaking changes, PHP 8 also brings a nice set of new features such as the JIT compiler, union types, attributes, and more. You can try out pre-release copies of PHP 8.0 today on Platform.sh, with just a one-line change. “Traits support the use of abstract methods in order to impose requirements upon the exhibiting class.”. Stringable interface. That’s a good improvement for the language, as gettype() is not useful for type checking. […] but this rule does not apply for the constructor. PHP 8 release is one of these major updates with a focus on performance thanks to its PHP 8 JIT compiler (Just in Time) added to new features which we will cover later in this article. Preloading provides a way to store a specified set of scripts into OPcache memory “before any application code is run“, but it doesn’t bring tangible performance improvement for typical web-based applications. Unify the various numeric string modes into a single concept: Numeric characters only with both leading and trailing whitespace allowed. More details on … The new version, PHP 8, promises to bring even more power and speed allowing for even better results. Here is the current support status of some popular projects, frameworks, applications, and more. This pseudo-type allows you to declare a value of any type without excluding type information altogether. To understand the difference between the two control structures, consider the following switch example from the RFC: We can now get the same result as the code above with the following match expression: A big advantage of using the new match expression is that while switch compares values loosely (==) potentially leading to unexpected results, with match the comparison is an identity check (===). Case Sensitive 6. An explicit mixed type would allow people to add types to parameters, class properties, and function returns to indicate that the type information wasn't forgotten about, it just can't be specified more precisely, or the programmer explicitly decided not to do so. With PHP 8 coming out in the next few weeks, it’s important for teams to be aware of the new features and performance improvements. The following list is our handpicked selection of the upcoming additions and changes that should make PHP more reliable and efficient. Zeev Surasky, co-author of the PHP JIT proposal, shows how much calculations would be faster with JIT: But, would JIT effectively improve WordPress performance? With OPcache enabled, the PHP interpreter goes through the 4 stage process mentioned above only the first time the script runs. Like argument lists, you can now also leave the trailing comma off at the end of parameter lists. Attributes are definitely one of the most confusing new PHP 8 features. Types are checked during inheritance, enforcing the Liskov Substitution Principle. It is not possible to implement an efficient weak map on top of PHP weak references because the ability to register a destruction callback is not provided.”. PHP 8 is pretty easy to support." This RFC intends to give string to number comparisons a more reasonable behavior: When comparing to a numeric string, use a number comparison (same as now). OAuth2 and OpenID Connect: The Professional Guide. The str_contains proposal passed with 43 to 9 votes. Video HD Video (35.97 MB) Download Video SD Video (24.23 MB) Download. str_contains. A lot of work has gone into the release of PHP 8, and the PHP community is no doubt excited to get their hands on it. JIT “doesn’t introduce any additional IR (Intermediate Representation) form”, but uses DynASM (Dynamic Assembler for code generation engines) to generate native code directly from PHP byte-code. Join Zend Product Manager and Principal Engineer, Matthew Weier O’Phinney, as he discusses how new features, improvements, and deprecations in PHP 8 will impact development teams as they adopt this latest PHP version. See any other competant language that handles oop, namespaces and includes. Analytics help us deliver better content to our audience. Slightly better performance for “typical” PHP web application code. a hierarchical representation of the structure of source code, How to Improve PHP Memory Limit in WordPress. To remove these inconsistencies, this RFC proposes to make the internal parameter parsing APIs to always generate a ThrowError in case of a parameter type mismatch. Traits are defined as “a mechanism for code reuse in single inheritance languages such as PHP”. Check out our deep dive into the new features! The Symfony team is ready to support PHP 8 right out of the gate. The match expression introduced in PHP 8 is similar to the switch statement, but with a few improvements: ‍ Note: match is now a reserved keyword. The RFC provides two useful examples to better understand the difference between the new get_debug_type() function and gettype(). Thanks, we've saved your settings, you can modify them any time on the. Is your WordPress site slow? A few observations The downside, though, would be the greater complexity that can lead to increasing costs in maintenance, stability, and debugging. PHP JIT is almost independent of OPcache and is introduced to bring significant improvements to language performance. The RFC proposal describes JIT as follows: “PHP JIT is implemented as an almost independent part of OPcache. Instead of two lines changing (adding a comma to the last parameter and the line with the new parameter), only one line would be highlighted. Set and used by Google Ads for remarketing, personalization, and targeting advertisements to users who have visited kinsta.com. WordPress plans to support PHP 8 in their next release (v5.6), which is currently scheduled for December 8th, 2020. When enabled, native code of PHP files is stored in an additional region of the OPcache shared memory and op_array→opcodes[].handler(s) keep pointers to the entry points of JIT-ed code.”. Before PHP 8, strstr and strpos were the typical options for developers to search for a needle inside a given string. Convert an object operand to integer one, while throwing a notice. But with property types, we don’t have this implicit behavior because promoted parameters require a property declaration, and the nullable type must be explicitly declared. PHP 8 is here! PHP is an interpreted language. Return Type Declarations. The cookie contains no information about the visitor whatsoever. Now, the Attributes v2 RFC introduces attributes for PHP defining them as a form of structured, syntactic metadata that can be added to declarations of classes, properties, functions, methods, parameters, and constants. Need a blazing-fast, secure, and developer-friendly hosting for your sites? According to the JIT RFC, the just in time compiler implementation should improve PHP performance. For a more … Introduction. Real-Time Access Monitoring See What’s New In PHP 8. We can pass named arguments to a function by simply adding the parameter name before its value: We are also allowed to use reserved keywords, as shown in the example below: But we are not allowed to pass a parameter name dynamically. In PHP 8, the code above would result in the following array: With PHP 8, arrays starting with a negative index change their behavior. ). According to Dmitry Stogov: “JIT is extremely simple, but anyway it increases the level of the whole PHP complexity, risk of new kind of bugs and cost of development and maintenance.”. The following table compares the behavior of string to number comparison earlier PHP versions and in PHP 8: Read more about the many implications of this change and how string to number comparisons change in PHP 8 in the official RFC from Nikita Popov. The following example from the RFC makes it clear: If you are a WordPress developer, please note that at the time of this writing, named arguments may lead to backward compatibility issues. — Nicolas Grekas. Used by Facebook for targeting advertisements and promoting content to users who have visited kinsta.com. Thanks to them, we could now avoid using sub-optimal and less intuitive functions like substr, strpos. We use cookies for some functionality on our website to work properly, collecting analytics to understand and improve a visitor's experience, and for personalized advertising. Read more about backward incompatibilities in the RFC. Previous known major release of PHP was 7.0.0. Silently do nothing if the operand is an array, resource or object. It’s the latest version of PHP so it is definitely more secure than PHP 7.4 and other older versions. As the official release date (26th November 2020) of PHP’s latest and greatest version PHP 8 is approaching, let’s take a look at every new feature and improvement that the PHP team has managed to fit in this version.. Platform Independent 9. => for = or make an object an jso object x:3, y:4 etc, 5. The proposal to include JIT in PHP 8 passed with 50 to 2 votes. Relative JIT contribution to PHP 8 performance (Image source: PHP 8.0 Announcement Addendum). “The benefits of the JIT compiler are roughly (and as already outlined in the RFC): So, while JIT will hardly bring huge improvements to WordPress performance, it’ll be upgrading PHP to the next level, making it a language many functions could now be written directly in. I’ve used PHP since v3 but very little these days in favor of node and c#, it could make a comeback if they: 1. © 2013-2020 Auth0 Inc. All Rights Reserved. In other words, the type and the number of required arguments need to be the same. Our Google Cloud powered infrastructure focuses on auto-scaling, performance, and security. It gets a lot of stick and like any language it has its limitations and annoyances, but it's great for some things and these just make it far better than PHP 7.x (which was already 100x better than PHP 5.x! Attributes, also known as annotations, are a form of structured metadata that can be used to specify properties for objects, elements, or files. A weak map is a collection of data (objects) in which keys are weakly referenced, meaning that they are not prevented from being garbage collected. I personally only witnessed two of them: • Attributes v2 looks needlessly complicated with an ugly syntax. The JIT compiler is sort of a middle ground between compilation and interpretation. With tracing logic that ties issues back to the line of code causing them, you can pinpoint n+1 queries, memory leaks, and other abnormalities in real time so you can knock them out and get back to building a great product. WordPress Core aims to be compatible with PHP 8.0 in the 5.6 release (currently scheduled for December 8, 2020). This situation would lead to a number of problems well explained in the RFC’s issues section. PHP 8 now introduces trailing commas in parameter lists with functions, methods, and closures, as shown in the following example: In order to fetch the name of a class, we can use the Foo\Bar::class syntax. The Auth0 PHP SDK has been updated to fully support PHP 8 right out of the gate, so you can get up and running with it immediately! OPcache has been recently improved with the implementation of preloading, a new OPcache feature added with PHP 7.4. Learn what's new and what has changed in the new PHP 8 release. You can accept all cookies at once or fine-tune your preferences in the cookie settings. Check out this excellent guide about how to enable JIT in PHP 8. We are still about four months from the v8.0.0, but you can start preparing for PHP 8 by learning about the new features, the upgrade path, and key dates to make sure you’re ready. The new function works in quite a similar way as the gettype function, but get_debug_type returns native type names and resolves class names. According to Nikita: Usually, we say that methods always have to be compatible with the parent method. "We are quite happy. In my free time you can usually find me reading, hanging out with my dogs, or curling in the squat rack. Named arguments are particularly useful with class declarations because constructors usually have a large number of parameters and named arguments provide a more “ergonomic” way to declare a class. The first example shows gettype at work: With PHP 8, we could use get_debug_type, instead: The following table shows returning values of get_debug_type and gettype: Here is a quick list of additional approved improvements coming with PHP 8: What a ride! This RFC proposes to extend the same syntax to objects so that it’s now possible to fetch the name of the class of a given object as shown in the example below: With PHP 8, $object::class provides the same result as get_class($object). ), this video where Nikita Popov of JetBrains interviews Nikolas Grekas. Remove all bad practice syntax sugar / structural sugar compatibility from the 1950s such as endif, see how wordpress devs code syntax shift is all over the place and often in same file, etc etc for just { }, But this is too way too much to ask, soo, I might give the lang another look @ php v10.x. Suggested reading: How to Improve PHP Memory Limit in WordPress. Let us show you the Kinsta difference! Previously, when we used a type that wasn’t explicitly nullable, but with a null default value, the type was implicitly nullable. This one is pretty straightforward but bound to make a lot of people happy! . Consider the following examples from the RFC: If $a is null, method b() isn’t called and $foo is set to null. The proposal was unanimously approved. Kinsta is built with WordPress developers in mind and provides plenty of tools and a powerful dashboard. Both functions are case sensitive: This RFC has been approved with 51 to 4 votes. Anyway, according to Nikita Popov, author of the RFC, signature validation is currently enforced only spottily: The following example from Nikita relates to the first case (not enforced signature): With that being said, this RFC proposes to always throw a fatal error if the implementing method is not compatible with the abstract trait method, regardless of its origin: In PHP, inheritance errors due to incompatible method signatures throw either a fatal error or a warning depending on what is causing the error. Here are some examples: A trait can also contain abstract methods. So we have a new way to promote properties that is shorter, more readable, and less prone to errors. Recommendations. PHP execution process with OPcache enabled. This page is a spot to list and discuss ideas for PHP 8. By submitting this form: You agree to the processing of the submitted personal data in accordance with Kinsta's Privacy Policy, including the transfer of data to the United States. The new version, PHP 8, promises to bring even more power and speed allowing for even better results. Sign up now to join the discussion. The property declaration is transformed as we’d explicitly declared those properties and we can use the Reflection API to introspect property definitions before the execution (see Desugaring): Reflection (and other introspection mechanisms) will observe the state after desugaring. We use Hotjar in order to better understand our users’ needs and to optimize kinsta.com. When passing a parameter of illegal type, internal and user-defined functions behave differently. We'll start with a list of all new features, and then look at changes and deprecations.A note before we dive in though: if you're still on a lower version of PHP,you'll also want to read what's new in PHP 7.3. This means that promoted properties will appear the same way as explicitly declared properties, and promoted constructor arguments will appear as ordinary constructor arguments. 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