HH\Map::lastValue

Returns the last value in the current Map

Description

public function lastValue(): ?Tv

Return Values

  • ?Tv - The last value in the current Map, or null if the Map is empty.

Examples

This example shows how lastValue() can be used even when a Map may be empty:

<?hh

namespace Hack\UserDocumentation\API\Examples\Map\LastValue;

$m = Map {
  'red' => '#ff0000',
  'green' => '#00ff00',
  'blue' => '#0000ff',
  'yellow' => '#ffff00',
};
var_dump($m->lastValue());

$m = Map {};
var_dump($m->lastValue());
Output
string(7) "#ffff00"
NULL