keyExists()

The keyExists() method tests whether the requested index exists.

Example.php
<?php use kim\present\utils\arrays\ArrayUtils;
​
$arrayUtils = ArrayUtils::from(["Apple", "Banana", "Carrot", "FAV" => "Becon"]);
​
//Check array has each indexs
$arrayUtils->keyExists(1);      // expected output: true
$arrayUtils->keyExists(2);      // expected output: true
$arrayUtils->keyExists(3);      // expected output: false
$arrayUtils->keyExists("HATE"); // expected output: false
$arrayUtils->keyExists("FAV");  // expected output: true
Syntax
$arrayUtils->keyExists(int|string $key) : bool;
Parameter
$key
The index being checked.
Return value
Boolean the whether the requested index exists
Prefixing
ArrayUtils::keyExistsFrom(iterable $from, int|string $key) : bool;
References
https://www.php.net/manual/en/function.isset
www.php.net
https://www.php.net/manual/en/function.array-key-exists
www.php.net
​

includes()

indexOf()

Last modified 2yr ago