The Ds\Map::intersect() function is an inbuilt function in PHP, which is used to create a new map which contains the intersection with another map. Syntax:
public Ds\Map::intersect( Ds\Map $map )
Parameter: This function accepts single parameter $map which holds the other map which contains the key of other elements. Return value: This function returns the intersection of current map with other map. Below programs illustrate the Ds\Map::intersect() function in PHP: Program 1:
php
<?php // PHP program to illustrate the intersect() // function of Ds\map // Creating a Map $map1 = new \Ds\Map(["1" => "10", "3" => 30, "4" => 40]); // Creating another Map $map2 = new \Ds\Map(["2" => "20", "3" => 35, "5" => 50, "6" => 60]); // Use Ds\Map::intersect() function print_r( $map1 -> intersect( $map2 )); ?> |
Output:
Ds\Map Object ( [0] => Ds\Pair Object ( [key] => 3 [value] => 30 ) )
Program 2:
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<?php // PHP program to illustrate the intersect() // function of Ds\map // Creating a Map $map1 = new \Ds\Map([ "1" => "Geeks", "2" => " for ", "3" => "Geeks"]); // Creating another Map $map2 = new \Ds\Map([ "2" => " for ", "3" => "Geeks", "4" => "neveropen"]); // Use Ds\Map::intersect() function print_r( $map1 -> intersect( $map2 )); ?> |
Output:
Ds\Map Object ( [0] => Ds\Pair Object ( [key] => 2 [value] => for ) [1] => Ds\Pair Object ( [key] => 3 [value] => Geeks ) )
Reference: https://www.php.net/manual/en/ds-map.intersect.php