Interface PHPStan\Reflection\FunctionReflection

Reflection for a standalone function (not a class method).

Represents both built-in PHP functions and user-defined functions. Like methods, functions can have multiple "variants" (overloaded signatures) — particularly common for built-in functions where the return type depends on argument types.

Extension developers encounter this interface when implementing DynamicFunctionReturnTypeExtension or FunctionTypeSpecifyingExtension.

Functions referenced in Scope::getFunctionCallStack() may be either FunctionReflection or MethodReflection.

PHPStan\Reflection\FunctionReflection
- PHPStan\Reflection\Php\PhpFunctionFromParserNodeReflection implements FunctionReflection, ExtendedParametersAcceptor
  - PHPStan\Reflection\Php\PhpMethodFromParserNodeReflection implements ExtendedMethodReflection
- PHPStan\Reflection\Native\NativeFunctionReflection implements FunctionReflection
- PHPStan\Reflection\Php\PhpFunctionReflection implements FunctionReflection
- PHPStan\Reflection\Php\ExitFunctionReflection implements FunctionReflection

Located at src/Reflection/FunctionReflection.php

Methods
`public`	`getName(): string` Implemented by `PHPStan\Reflection\Php\PhpFunctionFromParserNodeReflection::getName()`	#
`public`	`getFileName(): ?string` Implemented by `PHPStan\Reflection\Php\PhpFunctionFromParserNodeReflection::getFileName()`	#
`public`	`getVariants(): list<ExtendedParametersAcceptor>` Implemented by `PHPStan\Reflection\Php\PhpFunctionFromParserNodeReflection::getVariants()`	#
`public`	`getNamedArgumentsVariants(): list<ExtendedParametersAcceptor>\|null` Returns alternative signatures used when the function is called with named arguments. Returns null if the named argument variants are the same as regular variants. Returns alternative signatures used when the function is called with named arguments. Returns null if the named argument variants are the same as regular variants. Implemented by `PHPStan\Reflection\Php\PhpFunctionFromParserNodeReflection::getNamedArgumentsVariants()`	#
`public`	`acceptsNamedArguments(): TrinaryLogic` Implemented by `PHPStan\Reflection\Php\PhpFunctionFromParserNodeReflection::acceptsNamedArguments()`	#
`public`	`isDeprecated(): TrinaryLogic` Implemented by `PHPStan\Reflection\Php\PhpFunctionFromParserNodeReflection::isDeprecated()`	#
`public`	`getDeprecatedDescription(): ?string` Implemented by `PHPStan\Reflection\Php\PhpFunctionFromParserNodeReflection::getDeprecatedDescription()`	#
`public`	`isInternal(): TrinaryLogic` Implemented by `PHPStan\Reflection\Php\PhpFunctionFromParserNodeReflection::isInternal()`	#
`public`	`getThrowType(): ?Type` Implemented by `PHPStan\Reflection\Php\PhpFunctionFromParserNodeReflection::getThrowType()`	#
`public`	`hasSideEffects(): TrinaryLogic` Implemented by `PHPStan\Reflection\Php\PhpFunctionFromParserNodeReflection::hasSideEffects()`	#
`public`	`isBuiltin(): bool` Implemented by `PHPStan\Reflection\Php\PhpFunctionFromParserNodeReflection::isBuiltin()`	#
`public`	`getAsserts(): Assertions` Implemented by `PHPStan\Reflection\Php\PhpFunctionFromParserNodeReflection::getAsserts()`	#
`public`	`getDocComment(): ?string` Implemented by `PHPStan\Reflection\Php\PhpFunctionFromParserNodeReflection::getDocComment()`	#
`public`	`returnsByReference(): TrinaryLogic` Implemented by `PHPStan\Reflection\Php\PhpFunctionFromParserNodeReflection::returnsByReference()`	#
`public`	`isPure(): TrinaryLogic` In most cases hasSideEffects() is more practical as it also accounts for void return type (functions returning void are always impure). In most cases hasSideEffects() is more practical as it also accounts for void return type (functions returning void are always impure). Implemented by `PHPStan\Reflection\Php\PhpFunctionFromParserNodeReflection::isPure()`	#
`public`	`getPureUnlessCallableIsImpureParameters(): array<string, TrinaryLogic>` Implemented by `PHPStan\Reflection\Php\PhpFunctionFromParserNodeReflection::getPureUnlessCallableIsImpureParameters()`	#
`public`	`getPureUnlessParameterPassedParameters(): array<string, TrinaryLogic>` Implemented by `PHPStan\Reflection\Php\PhpFunctionFromParserNodeReflection::getPureUnlessParameterPassedParameters()`	#
`public`	`getAttributes(): list<AttributeReflection>` Implemented by `PHPStan\Reflection\Php\PhpFunctionFromParserNodeReflection::getAttributes()`	#
`public`	`mustUseReturnValue(): TrinaryLogic` On PHP 8.5+ if the return value is unused at runtime, a warning is emitted. PHPStan reports this during analysis regardless of PHP version. On PHP 8.5+ if the return value is unused at runtime, a warning is emitted. PHPStan reports this during analysis regardless of PHP version. Implemented by `PHPStan\Reflection\Php\PhpFunctionFromParserNodeReflection::mustUseReturnValue()`	#

Namespaces

Classes

Interfaces

Interface PHPStan\Reflection\FunctionReflection

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