PHP | Ds\Map intersect() Function
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:
Ds\Map 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 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)); ?> |
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Output:
Ds\Map Object
(
[0] => Ds\Pair Object
(
[key] => 3
[value] => 30
)
)
Program 2:
<?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 $map2 = new \Ds\Map([ "2" => "for", "3" => "Geeks", "4" => "GeeksforGeeks"]); // Use Ds\Map::intersect() function print_r($map1 -> intersect($map2)); ?> |
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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
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