GoLang Ds\Map::hasKey

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PHP Ds\Map::hasKey

PHP original manual for Ds\Map::hasKey [ show | php.net ]

(PECL ds >= 1.0.0)

Ds\Map::hasKey — Determines whether the map contains a given key

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

Determines whether the map contains a given key.

Returns TRUE if the key could found, FALSE otherwise.

Example #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
?>

The above example will output something similar to:

bool(true)
bool(false)