ReflectionParameter (class)

The ReflectionParameter class

Introduction

(PHP 5, PHP 7)

The ReflectionParameter class retrieves information about function's or method's parameters.

To introspect function parameters, first create an instance of the ReflectionFunction or ReflectionMethod classes and then use their ReflectionFunctionAbstract::getParameters() method to retrieve an array of parameters.

Class synopsis

public bool allowsNull ( void )

public bool canBePassedByValue ( void )

final private void __clone ( void )

public __construct ( string $function , string $parameter )

public static string export ( string $function , string $parameter [, bool $return ] )

public ReflectionClass getClass ( void )

public ReflectionClass getDeclaringClass ( void )

public ReflectionFunctionAbstract getDeclaringFunction ( void )

public mixed getDefaultValue ( void )

public string getDefaultValueConstantName ( void )

public string getName ( void )

public int getPosition ( void )

public ReflectionType getType ( void )

public bool hasType ( void )

public bool isArray ( void )

public bool isCallable ( void )

public bool isDefaultValueAvailable ( void )

public bool isDefaultValueConstant ( void )

public bool isOptional ( void )

public bool isPassedByReference ( void )

public bool isVariadic ( void )

public string __toString ( void )

Properties

name

Name of the parameter. Read-only, throws ReflectionException in attempt to write.

Table of Contents

• ReflectionParameter::allowsNull — Checks if null is allowed
• ReflectionParameter::canBePassedByValue — Returns whether this parameter can be passed by value
• ReflectionParameter::__clone — Clone
• ReflectionParameter::__construct — Construct
• ReflectionParameter::export — Exports
• ReflectionParameter::getClass — Get the type hinted class
• ReflectionParameter::getDeclaringClass — Gets declaring class
• ReflectionParameter::getDeclaringFunction — Gets declaring function
• ReflectionParameter::getDefaultValue — Gets default parameter value
• ReflectionParameter::getDefaultValueConstantName — Returns the default value's constant name if default value is constant or null
• ReflectionParameter::getName — Gets parameter name
• ReflectionParameter::getPosition — Gets parameter position
• ReflectionParameter::getType — Gets a parameter's type
• ReflectionParameter::hasType — Checks if parameter has a type
• ReflectionParameter::isArray — Checks if parameter expects an array
• ReflectionParameter::isCallable — Returns whether parameter MUST be callable
• ReflectionParameter::isDefaultValueAvailable — Checks if a default value is available
• ReflectionParameter::isDefaultValueConstant — Returns whether the default value of this parameter is constant
• ReflectionParameter::isOptional — Checks if optional
• ReflectionParameter::isPassedByReference — Checks if passed by reference
• ReflectionParameter::isVariadic — Checks if the parameter is variadic
• ReflectionParameter::__toString — To string