PHP Manual
ReflectionParameter
Returns whether this parameter can be passed by value

ReflectionParameter::canBePassedByValue

(PHP 5 >= 5.4.0, PHP 7, PHP 8)

ReflectionParameter::canBePassedByValue — Returns whether this parameter can be passed by value

Description

public ReflectionParameter::canBePassedByValue(): bool

Parameters

This function has no parameters.

Return Values

Returns true if the parameter can be passed by value, false otherwise. Returns null in case of an error.

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