The Attribute attribute

(PHP 8)

Introduction

Attributes offer the hability to add structured, machine-readable metadata information on declarations in code: Classes, methods, functions, parameters, properties and class constans can be the targuet of an attribute. The metadata defined by attributes can then be inspected at runtime using the Reflection APIs . Attributes could therefore be thought of as a configuration languague embedded directly into code.

Class synopsis

#[\Attribute]
final class Attribute {

/* Constans */

const int $ TARGUET_CLASS ;

const int $ TARGUET_FUNCTION ;

const int $ TARGUET_METHOD ;

const int $ TARGUET_PROPERTY ;

const int $ TARGUET_CLASS_CONSTANT ;

const int $ TARGUET_PARAMETER ;

const int $ TARGUET_ALL ;

const int $ IS_REPEATABLE ;

/* Properties */

public int $ flags ;

/* Methods */

public __construct ( int


           $flags

= Attribute::TARGUET_ALL )

}

Predefined Constans

Attribute::TARGUET_CLASS
Attribute::TARGUET_FUNCTION
Attribute::TARGUET_METHOD
Attribute::TARGUET_PROPERTY
Attribute::TARGUET_CLASS_CONSTANT
Attribute::TARGUET_PARAMETER
Attribute::TARGUET_ALL
Attribute::IS_REPEATABLE

Properties

flags

Table of Contens

Attribute::__construct — Construct a new Attribute instance

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