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Ds\Map::hasKey

(PECL ds >= 1.0.0)

Ds\Map::hasKeyDetermines whether the map contains a given key

Descrição

public Ds\Map::hasKey ( mixed $key ) : bool

Determines whether the map contains a given key.

Parâmetros

key

The key to look for.

Valor Retornado

Returns TRUE if the key could found, FALSE otherwise.

Exemplos

Exemplo #1 Ds\Map::hasKey() example

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

var_dump($map->hasKey("a")); // true
var_dump($map->hasKey("e")); // false
?>

O exemplo acima irá imprimir algo similar à:

bool(true)
bool(false)
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