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Is there a tool the generate php interface from existing classes? It would be nice to have a tool like Netbeans automatic getter/setter creation but for interfaces.
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A PHP interface defines a contract which a class must fulfill. If a PHP class is a blueprint for objects, an interface is a blueprint for classes. Any class implementing a given interface can be expected to have the same behavior in terms of what can be called, how it can be called, and what will be returned.
The interface is another property of PHP that enables the developer to build a program without any complex methods. It inherits the same public method that a class holds. Due to these properties, an interface can define methods.
Classes may implement more than one interface if desired by separating each interface with a comma. A class can implement two interfaces which define a method with the same name, only if the method declaration in both interfaces is identical.
To declare an interface, use the interface keyword. It is used to provide total abstraction. That means all the methods in an interface are declared with an empty body and are public and all fields are public, static, and final by default.
For programmatic usage there is InterfaceDistiller that allows you to derive interfaces from existing classes like this:
$distiller = new InterfaceDistiller;
$distiller
->methodsWithModifiers(\ReflectionMethod::IS_PUBLIC)
->extendInterfaceFrom('Iterator, SeekableIterator')
->excludeImplementedMethods()
->excludeInheritedMethods()
->excludeMagicMethods()
->excludeOldStyleConstructors()
->filterMethodsByPattern('(^get)')
->saveAs(new SplFileObject('MyInterface.php'))
->distill('SomeFoo', 'MyInterface');
It also has a CLI interface:
Usage: phpdistill [options] <classname> <interfacename>
--bootstrap Path to File containing your bootstrap and autoloader
--methodsWithModifiers <number> A ReflectionMethod Visibility BitMask. Defaults to Public.
--extendInterfaceFrom <name,...> Comma-separated list of Interfaces to extend.
--excludeImplementedMethods Will exclude all implemented methods.
--excludeInheritedMethods Will exclude all inherited methods.
--excludeMagicMethods Will exclude all magic methods.
--excludeOldStyleConstructors Will exclude Legacy Constructors.
--filterMethodsByPattern <pattern> Only include methods matching PCRE pattern.
--saveAs Filename to save new Interface to. STDOUT if omitted.
I'm not aware of any IDE that offers such functionality for php.
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