> For the complete documentation index, see [llms.txt](https://arrayutils.docs.present.kim/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://arrayutils.docs.present.kim/methods/c/flip.md).

# flip()

{% code title="Example.php" %}

```php
<?php
use kim\present\utils\arrays\ArrayUtils;

$arrayUtils = ArrayUtils::from(["a", "b", "c", "d"]);

//General usage
$arrayUtils->flip();
// expected output: ["a" => 0, "b" => 1, "c" => 2, "d" => 3]
```

{% endcode %}

## Syntax

```php
$arrayUtils->flip() : ArrayUtils;
```

### Return value

* A flipped array on success and **`NULL`** on failure.

## Prefixing

```php
$arrayUtils->flipAs() : array;
```

```php
ArrayUtils::flipFrom(iterable $from) : ArrayUtils;
```

```php
ArrayUtils::flipFromAs(iterable $from) : array;
```

## References

{% embed url="<https://www.php.net/manual/en/function.array-flip>" %}