PHP | ReflectionParameter canBePassedByValue() Function

0 0 1 minute read

The ReflectionParameter::canBePassedByValue() function is an inbuilt function in PHP which is used to return TRUE if the parameter can be passed by value, otherwise returns FALSE.

Syntax:

bool ReflectionParameter::canBePassedByValue( void )

Parameters: This function does not accept any parameter.

Return Value: This function returns TRUE if the parameter can be passed by value, otherwise returns FALSE.

Below programs illustrate the ReflectionParameter::canBePassedByValue() function in PHP:

Program 1:

<?php 
  
// Initializing a user-defined class Company1 
class Company1 
{ 
    public function GFG( $Parameter){} 
} 
   
// Initializing a subclass Company2 
class Company2 extends Company1 
{ 
} 
   
// Using the ReflectionParameter over the above class 
$A = new ReflectionParameter(['Company2', 'GFG'], 0);  
   
// Calling the canBePassedByValue() function 
$B = $A->canBePassedByValue(); 
   
// Getting the boolean value TRUE if the  
// parameter can be passed by value,  
// otherwise returns FALSE.  
var_dump($B); 
?> 

Output:

bool(true)

Program 2:

<?php 
   
// Initializing some user-defined classes 
class Department1 
{ 
    protected function HR($Parameter1){} 
} 
class Department2 
{ 
    final function Coding( Exception $Parameter2, Exception $Parameter3){} 
} 
class Department3 
{ 
    function Marketing($Parameter4, $Parameter5, $Parameter6){} 
} 
   
// Using the ReflectionParameter over the above classes 
$A = new ReflectionParameter(['Department1', 'HR'], 0); 
$B = new ReflectionParameter(['Department2', 'Coding'], 1); 
$C = new ReflectionParameter(['Department3', 'Marketing'], 2); 
   
// Calling the canBePassedByValue() function and 
// getting the boolean value TRUE if the  
// parameter can be passed by value,  
// otherwise returns FALSE.  
var_dump($A->canBePassedByValue()); 
var_dump($B->canBePassedByValue()); 
var_dump($C->canBePassedByValue()); 
?> 

Output:

bool(true)
bool(true)
bool(true)

Reference: https://secure.php.net/manual/en/reflectionparameter.canbepassedbyvalue.php

Whether you’re preparing for your first job interview or aiming to upskill in this ever-evolving tech landscape, zambiatek Courses are your key to success. We provide top-quality content at affordable prices, all geared towards accelerating your growth in a time-bound manner. Join the millions we’ve already empowered, and we’re here to do the same for you. Don’t miss out – check it out now!