Description

Anemone::has(?string $key = null): bool;

Checks for the existence of a key recursively using dot notation syntax. This is the OOP style of function has(), implemented as a class method. If the key does exist and it contains falsy value, this method would still return true.

Example

$anemone = new Anemone([
    'foo' => 1,
    'bar' => [
        'baz' => false,
        'qux' => null
    ]
]);

$foo = $anemone->has('foo'); // Returns `true`
$baz = $anemone->has('bar.baz'); // Returns `true`
$wut = $anemone->has('bar.wut'); // Returns `false`

$all = $anemone->has(); // Returns `true` (not to be used like this, but, okay…)