PHP | ReflectionClass getConstants() Function
Last Updated :
30 Nov, 2019
The ReflectionClass::getConstants() function is an inbuilt function in PHP which is used to return an array of the specified constant names.
Syntax:
array ReflectionClass::getConstants( void )
Parameters: This function does not accept any parameter.
Return Value: This function returns an array of the specified constant names.
Below programs illustrate the ReflectionClass::getConstants() function in PHP:
Program 1:
<?php
class Company {
const First = "GeeksforGeeks" ;
const Second = "GFG" ;
}
$A = new ReflectionClass( 'Company' );
$a = $A ->getConstants();
print_r( $a );
?>
|
Output:
Array
(
[First] => GeeksforGeeks
[Second] => GFG
)
Program 2:
<?php
class Departments {
const First = "CSE" ;
const Second = "ECE" ;
const Third = "EE" ;
const Fourth = "Mechanical" ;
}
$A = new ReflectionClass( 'Departments' );
$a = $A ->getConstants();
print_r( $a );
?>
|
Output:
Array
(
[First] => CSE
[Second] => ECE
[Third] => EE
[Fourth] => Mechanical
)
Reference: https://www.php.net/manual/en/reflectionclass.getconstants.php
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