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[RFC] class_name:namespace

php.internals

Manuel Canga

5 years ago
Hi internals, I would like to present a possible new RFC( "class_name:namespace" ) for your consideration. As you know, namespaces are very important nowdays. They are used in autoloaders, Frameworks, CMS, ... Maybe, you are used to code something similar to this: ``` use MyProject\MyHelpers\MyClass; echo substr( MyClass::class, 0, strrpos( MyClass::class, '\\')); ``` or perhaps: ``` use MyProject\MyHelpers\MyClass; $splited_class_name = explode( '\\', MyClass::class ); array_pop($splited_class_name); echo $namespace = implode('\\', $splited_class_name ); ``` Other option is: ``` namespace MyProject\MyHelpers; class MyClass { public const NAMESPACE = __NAMESPACE__; } ``` However... :( ``` namespace MyProject\MyServices; class MyNewClass extends MyClass{ } echo MyNewClass::NAMESPACE; //MyProject\MyHelpers ``` All of these examples are ways for getting a thing which PHP compiler would resolver fast. It would be fantastic can code: MyClass::namespace or static::namespace( for example, in abstract classes ) Don't you think the same ? Regards
-- Manuel Canga Zend Certified PHP Engineer Websites: https://manuelcanga.dev | https://trasweb.net Linkedin: https://es.linkedin.com/in/manuelcanga

Nikita Popov

5 years ago
On Thu, Feb 25, 2021 at 8:11 PM Manuel Canga <php@manuelcanga.dev> wrote:
> Hi internals, > > I would like to present a possible new RFC( "class_name:namespace" ) for > your consideration. > > As you know, namespaces are very important nowdays. They are used in > autoloaders, Frameworks, CMS, ... > > Maybe, you are used to code something similar to this: > > ``` > use MyProject\MyHelpers\MyClass; > > echo substr( MyClass::class, 0, strrpos( MyClass::class, '\\')); > ``` > > or perhaps: > > ``` > use MyProject\MyHelpers\MyClass; > > $splited_class_name = explode( '\\', MyClass::class ); > array_pop($splited_class_name); > echo $namespace = implode('\\', $splited_class_name ); > ``` > > Other option is: > > ``` > namespace MyProject\MyHelpers; > > class MyClass { > public const NAMESPACE = __NAMESPACE__; > } > ``` > > However... :( > > ``` > namespace MyProject\MyServices; > > class MyNewClass extends MyClass{ > } > > echo MyNewClass::NAMESPACE; //MyProject\MyHelpers > ``` > > All of these examples are ways for getting a thing which PHP compiler > would resolver fast. > > It would be fantastic can code: > > MyClass::namespace or static::namespace( for example, in abstract classes ) > > Don't you think the same ?
Could you please share the use case(s) you have in mind for this? Regards, Nikita

Manuel Canga

5 years ago
---- En jue, 25 feb 2021 21:41:40 +0100 Nikita Popov <nikita.ppv@gmail.com> escribió ----
> On Thu, Feb 25, 2021 at 8:11 PM Manuel Canga <php@manuelcanga.dev> wrote: > > > Hi internals, > > > > I would like to present a possible new RFC( "class_name:namespace" ) for > > your consideration. > > > > As you know, namespaces are very important nowdays. They are used in > > autoloaders, Frameworks, CMS, ... > > > > Maybe, you are used to code something similar to this: > > > > ``` > > use MyProject\MyHelpers\MyClass; > > > > echo substr( MyClass::class, 0, strrpos( MyClass::class, '\\')); > > ``` > > > > or perhaps: > > > > ``` > > use MyProject\MyHelpers\MyClass; > > > > $splited_class_name = explode( '\\', MyClass::class ); > > array_pop($splited_class_name); > > echo $namespace = implode('\\', $splited_class_name ); > > ``` > > > > Other option is: > > > > ``` > > namespace MyProject\MyHelpers; > > > > class MyClass { > > public const NAMESPACE = __NAMESPACE__; > > } > > ``` > > > > However... :( > > > > ``` > > namespace MyProject\MyServices; > > > > class MyNewClass extends MyClass{ > > } > > > > echo MyNewClass::NAMESPACE; //MyProject\MyHelpers > > ``` > > > > All of these examples are ways for getting a thing which PHP compiler > > would resolver fast. > > > > It would be fantastic can code: > > > > MyClass::namespace or static::namespace( for example, in abstract classes ) > > > > Don't you think the same ? > > > Could you please share the use case(s) you have in mind for this? > > Regards, > Nikita
Hi, Nikita, Yes, of course. For example, loading views using TemplateViews pattern[1]: ``` namespace MyProjects\Framework; abstract class TemplateView { private const VIEW_SUBPATH = '/views/'; protected function includeView( string $viewName ) { $filePath = str_replace('\\', '/', static::namespace ). self::VIEW_SUBPATH; $fileName =$filePath.$viewName.'.tpl'; if( file_exists($fileName) ) { return include $fileName; } error_log("Not found view[$viewName] in path $filePath" }; } } ``` ``` namespace MyProject\CMS\Freelancer\Attachments; class Budget extends TemplateView { public function __toString() { $this->includeView('full_budget'); } }``` Regards - P.S: Sorry, my mistake with subject. [1]: https://dzone.com/articles/practical-php-patterns/practical-php-patterns-9
-- Manuel Canga Zend Certified PHP Engineer Websites: https://manuelcanga.dev | https://trasweb.net Linkedin: https://es.linkedin.com/in/manuelcanga

David Gebler

5 years ago
You can achieve what you're trying to do already with a combination of get_class() on a namespaced class and a simple regex (or other method of processing a string to your liking): $foo = "My\\Namespace\\Name\\Class"; var_dump(preg_match('/^(.*)\\\([^\\\]*)$/m',$foo,$matches),$matches); array(3) { [0] => string(23) "My\Namespace\Name\Class" [1] => string(17) "My\Namespace\Name" [2] => string(5) "Class" } Regards David Gebler On Thu, Feb 25, 2021 at 9:40 PM Manuel Canga <php@manuelcanga.dev> wrote:

Pierre

5 years ago
Le 25/02/2021 à 21:41, Nikita Popov a écrit :
> Could you please share the use case(s) you have in mind for this? > > Regards, > Nikita
Hello, I don't have a concrete example in mind right now, it happens I do need this sometime. It's mitigated by the fact I need it in most case when accessing class reflection in order to introspect it and generate code or documentation along or I do need to explode the whole class name to introspect namespace parts. Nevertheless, it still happens that I do magic with class names without using the reflection, one use case that comes to mind is a class name to logical name mapper I've written for converting PHP domain class names to logical PHP-free message names for a bus in an heterogeneous infra based upon a naming convention (using the namespaces as a basis for string replacement).
-- Pierre