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📄 Attributes overview 📄 Attribute syntax 📄 Reading Attributes with the Reflection API 📄 Declaring Attribute Classes 📄 PHP tags 📄 Escaping from HTML 📄 Instruction separation 📄 Comments 📄 Syntax 📄 Predefined constants 📄 Magic constants 📄 Context options and parameters 📄 Introduction 📄 Enumerations overview 📄 Basic enumerations 📄 Backed enumerations 📄 Enumeration methods 📄 Enumeration static methods 📄 Enumeration constants 📄 Traits 📄 Enum values in constant expressions 📄 Differences from objects 📄 Value listing 📄 Serialization 📄 Why enums aren't extendable 📄 Basic limited values 📄 Introduction 📄 Global exception handler 📄 Converting error reporting to exceptions 📄 Throwing an Exception 📄 Extending Exceptions 📄 Expressions 📄 Fibers 📄 User-defined functions 📄 Function parameters and arguments 📄 Returning values 📄 Variable functions 📄 Internal (built-in) functions 📄 Anonymous functions 📄 Arrow Functions 📄 First class callable syntax 📄 Generators overview 📄 Generator syntax 📄 Comparing generators with objects 📄 Namespaces overview 📄 Defining namespaces 📄 Declaring sub-namespaces 📄 Defining multiple namespaces in the same file 📄 Using namespaces: Basics 📄 Namespaces and dynamic language features 📄 The namespace keyword and __NAMESPACE__ magic constant 📄 Using namespaces: Aliasing/Importing 📄 Global space 📄 Using namespaces: fallback to the global space for functions and constants 📄 Name resolution rules 📄 FAQ: things you need to know about namespaces 📄 Introduction 📄 Operators 📄 What References Are 📄 What References Do 📄 What References Are Not 📄 Passing by Reference 📄 Returning References 📄 Unsetting References 📄 Spotting References 📄 Introduction 📄 Basics 📄 Predefined Variables 📄 Variable scope 📄 Variable variables 📄 Variables From External Sources 📄 Supported Protocols and Wrappers