HH\Pair::get

Returns the value at the specified key in the current Pair.

Description

public function get(
  int $k,
): mixed

Returns the value at the specified key in the current Pair.

If the key is not present, null is returned. If you would rather have an exception thrown when a key is not present, then use at().

Parameters

  • int $k - the key from which to retrieve the value.

Return Values

  • mixed - The value at the specified key; or null if the key does not exist.

Examples

<?hh

namespace Hack\UserDocumentation\API\Examples\Pair\Get;

$p = Pair {'foo', -1.5};

// Print the first value
var_dump($p->get(0));

// Print the second value
var_dump($p->get(1));

// Print NULL since index 2 doesn't exist in a Pair
var_dump($p->get(2));
Output
string(3) "foo"
float(-1.5)
NULL