PHP - Ds Map intersect() Function

Syntax

public Ds\Map Ds\Map::intersect( Ds\Map $map )

Ds\Map::intersect() function can create a new map containing the pairs of current instance whose keys are present in a given map. In other words, returning a copy of the current instance with all keys removed that are not on the other map.

Ds\Map::intersect() function can return a key intersection of the current instance and another map.

Example 1

<?php  
   $mapOne = new \Ds\Map(["1" => "10", "2" => 20, "4" => 40]);  
   $mapTwo = new \Ds\Map(["2" => "20", "4" => 40, "5" => 50]);  
  
   print_r($mapOne -> intersect($mapTwo)); 
?>

Example 2

<?php  
   $mapOne = new \Ds\Map(["1" => "Tutorials", "2" => "Point", "3" => "India"]); 
   $mapTwo = new \Ds\Map(["2" => "Point", "3" => "India", "4" => "Tutorix"]); 
  
   print_r($mapOne -> intersect($mapTwo)); 
?>

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