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PHP | Ds\Set add() Function
  • Last Updated : 22 Aug, 2019

The Ds\Set::add() function is an inbuilt function in PHP which is used to add values to the set.

Syntax:

void public Ds\Set::add( $values )

Parameters: This function accepts a single parameter $values which holds many values to be added in the set.

Return value: This function does not return any values.

Below programs illustrate the Ds\Set::add() function in PHP:



Program 1:

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<?php
  
// Declare an empty set
$set = new \Ds\Set();
  
// Use add() function to
// add elements to the set
$set->add(1);
  
$set->add("Geeks");
  
$set->add("G");
  
$set->add(10);
  
var_dump($set);
?>

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Output:

object(Ds\Set)#1 (4) {
  [0]=>
  int(1)
  [1]=>
  string(5) "Geeks"
  [2]=>
  string(1) "G"
  [3]=>
  int(10)
}

Program 2:

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<?php
  
// Declare an empty set
$set = new \Ds\Set();
  
// Use add() function to
// add elements to the set
$set->add(10, 20, 30, "Geeks", "for");
  
print_r($set);
?>

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Output:

Ds\Set Object
(
    [0] => 10
    [1] => 20
    [2] => 30
    [3] => Geeks
    [4] => for
)

Reference: http://php.net/manual/en/ds-set.add.php

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