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PHP | Ds\Set intersect() Function

Last Updated : 01 Feb, 2023
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The Ds\Set::intersect() function is an inbuilt function in PHP which is used to create a new set which contains the intersection of two sets.

Syntax:

Ds\Set public Ds\Set::intersect ( Ds\Set $set )

Parameters: This parameter holds the set which contains set elements. 

Return Value: This function returns the intersection of current set with other set. 

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

Program 1: 

php 
<?php 
 
// Declare a new set
$a = new \Ds\Set([2, 3, 6]); 
 
// Declare another new set
$b = new \Ds\Set([2, 4, 6, 7]); 
 
// Print the Intersection of both set
echo("Intersection of both set is: \n"); 
 
print_r($a->intersect($b));
 
?>
Output:
Intersection of both set is: 
Ds\Set Object
(
    [0] => 2
    [1] => 6
)

Program 2: 

php 
<?php 
 
// Declare a new set
$a = new \Ds\Set([2, 3, 6, 7, 8]); 
 
// Declare another set
$b = new \Ds\Set([2, 3, 5, 8, 9, 10]); 
 
// Print the Intersection of both set
echo("Intersection of both set is: \n"); 
 
var_dump($a->intersect($b));
 
?>
Output:
Intersection of both set is: 
object(Ds\Set)#3 (3) {
  [0]=>
  int(2)
  [1]=>
  int(3)
  [2]=>
  int(8)
}

Reference: https://www.php.net/manual/en/ds-set.intersect.php


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