PHP | Ds\Map __construct() Function Last Updated : 20 Aug, 2019 Comments Improve Suggest changes Like Article Like Report The Ds\Map::__construct() function is an inbuilt function in PHP which is used to creates a new instance. Syntax: public Ds\Map::__construct( $values ) Parameter: This function accepts a single parameter $values which holds the traversable object or array to use initial values. Below programs illustrate the Ds\Map::__construct() function in PHP: Program 1: php <?php // PHP program to illustrate the __construct() // function of Ds\map // Declare a new Map $map = new \Ds\Map(); // Display the map elements print_r($map); // Creating a Map $map = new \Ds\Map([ "1" => "Geeks", "2" => "for", "3" => "Geeks" ]); // Display the map elements print_r($map); ?> Output: Ds\Map Object ( ) Ds\Map Object ( [0] => Ds\Pair Object ( [key] => 1 [value] => Geeks ) [1] => Ds\Pair Object ( [key] => 2 [value] => for ) [2] => Ds\Pair Object ( [key] => 3 [value] => Geeks ) ) Program 2: php <?php // PHP program to illustrate the __construct() // function of Ds\map // Creating a Map $map = new \Ds\Map(["1" => "10", "2" => "20", "3" => 30]); // Display key-value pair print_r($map); // Creating another Map $map = new \Ds\Map([1 => "Welcome", 2 => "to", 3 => "GeeksforGeeks"]); // Display key-value pair print_r($map); ?> Output: Ds\Map Object ( [0] => Ds\Pair Object ( [key] => 1 [value] => 10 ) [1] => Ds\Pair Object ( [key] => 2 [value] => 20 ) [2] => Ds\Pair Object ( [key] => 3 [value] => 30 ) ) Ds\Map Object ( [0] => Ds\Pair Object ( [key] => 1 [value] => Welcome ) [1] => Ds\Pair Object ( [key] => 2 [value] => to ) [2] => Ds\Pair Object ( [key] => 3 [value] => GeeksforGeeks ) ) Reference: https://www.php.net/manual/en/ds-map.construct.php Comment More infoAdvertise with us Next Article PHP | Ds\Map __construct() Function J jit_t Follow Improve Article Tags : Web Technologies PHP PHP-function PHP-ds_map Similar Reads PHP | DsSet __construct() Function The Ds\Set::__construct() function is an inbuilt function in PHP which is used to create new instance of set. Syntax: Ds\Set::__construct( $values ) Parameters: This function accepts single parameter $values which holds the traversable object or array to use initial values. Below programs illustrate 1 min read PHP | DsPair __construct() Function The Ds\Pair::__construct() function is an inbuilt function in PHP which is used to create a new instance. Syntax: public Ds\Pair::__construct( $key, $value ) Parameters: This function accepts two parameters as mentioned above and described below: $key: This parameter holds the key of the pair elemen 2 min read PHP | DsDeque __construct() Function The Ds\Deque::__construct() function is an inbuilt function in PHP which is used to create a new instance. Syntax: Ds\Deque::__construct( $values ) Parameters: This function accepts single parameter $values which holds the traversable object or array to use initial values. Below programs illustrate 2 min read PHP | DsStack __construct() Function The Ds\Stack::__construct() function is an inbuilt function in PHP which is used to create a new instance of stack. Syntax: public Ds\Stack::__construct( $values ) Parameters: This function accepts single parameter $values which holds the traversable object or array to use initial values. Below prog 1 min read PHP | DsVector __construct() Function The Ds\Vector::__construct() function is an inbuilt function in PHP which is used to creates a new instance. Syntax: public Ds\Vector::__construct( $values ) Parameters: This function accepts single parameter $values which holds the traversable object or array to use initial values. Below programs i 1 min read Like