PHP | ReflectionProperty __toString() Function

PHP | ReflectionParameter __toString() Function

Last Updated : 23 Dec, 2019

The ReflectionParameter::__toString() function is an inbuilt function in PHP which is used to return the string form of the specified parameter.

Syntax:

string ReflectionParameter::__toString ( void )

Parameters: This function does not accept any parameters.

Return Value: This function returns the string form of the specified parameter.

Below programs illustrate the ReflectionParameter::__toString() function in PHP:
Program 1:

<?php 
   
// Initializing a user-defined class Company1 
class Company1 
{ 
    public function GFG( $Parameter_1){} 
} 
    
// Initializing a subclass Company2 
class Company2 extends Company1 
{ 
} 
    
// Using the ReflectionParameter over the above class 
$A = new ReflectionParameter(['Company2', 'GFG'], 0);  
    
// Calling the __toString() function 
$B = $A->__toString(); 
    
// Getting the string form of the  
// specified parameter. 
var_dump($B); 
?> 

Output:

string(40) "Parameter #0 [ <required> $Parameter_1 ]"

Program 2:

<?php 
    
// Initializing some user-defined classes 
class Department1 
{ 
    function HR( $Full_Name){} 
} 
class Department2 
{ 
    function Coding( $Parameter2, $Par3 = 'Parameter_3'){} 
} 
class Department3 
{ 
    function Marketing( &$Parameter4, ...$Parameter5){} 
} 
    
// Using the ReflectionParameter over the above classes 
$A = new ReflectionParameter(['Department1', 'HR'], 0); 
$B = new ReflectionParameter(['Department2', 'Coding'], 1); 
$C = new ReflectionParameter(['Department3', 'Marketing'], 1); 
    
// Calling the __toString() function and  
// getting the string form of the  
// specified parameter. 
var_dump($A->__toString()); 
var_dump($B->__toString()); 
var_dump($C->__toString()); 
?> 

Output:

string(38) "Parameter #0 [ <required> $Full_Name ]"
string(49) "Parameter #1 [ <optional> $Par3 = 'Parameter_3' ]"
string(42) "Parameter #1 [ <optional> ...$Parameter5 ]"

Reference: https://www.php.net/manual/en/reflectionparameter.tostring.php

PHP | ReflectionProperty __toString() Function

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