GoLang Ds\Map::hasKey

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PHP Ds\Map::hasKey

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

Ds\Map::hasKey

(PECL ds >= 1.0.0)

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

Description

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

Determines whether the map contains a given key.

Parameters

key

The key to look for.

Return Values

Returns TRUE if the key could found, FALSE otherwise.

Examples

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)