Midwest PHP Call For Papers Open

Ds\Map::keys

(PECL ds >= 1.0.0)

Ds\Map::keysReturns a set of the map's keys

Descrierea

public Ds\Map::keys ( void ) : Ds\Set

Returns a set containing all the keys of the map, in the same order.

Parametri

Această funcție nu are parametri.

Valorile întoarse

A Ds\Set containing all the keys of the map.

Exemple

Example #1 Ds\Map::keys() example

<?php
$map 
= new \Ds\Map(["a" => 1"b" => 2"c" => 3]);
var_dump($map->keys());
?>

Exemplul de mai sus va afișa ceva similar cu:

object(Ds\Set)#2 (3) {
  [0]=>
  string(1) "a"
  [1]=>
  string(1) "b"
  [2]=>
  string(1) "c"
}
add a note add a note

User Contributed Notes

There are no user contributed notes for this page.
To Top