A::flip()

Inverts the given array into a multimap of value → keys. Values may be scalar (a single key) or arrays (each element becomes its own key in the result). Unlike PHP's array_flip(), duplicate values are preserved: every original key that maps to the same value ends up in the resulting list.

Since 5.5.0
kirby/src/Toolkit/A.php#L264

A::flip(array $array): array

Parameters

Name	Type	Default
$arrayrequired	`array`	no default value

Return type

array

Parent class

Kirby\Toolkit\A

Examples

$array = [
  'apple'      => ['red', 'green'],
  'strawberry' => 'red',
  'banana'     => 'yellow',
  'kiwi'       => 'green',
];

A::flip($array);

// result: [
//   'red'    => ['apple', 'strawberry'],
//   'green'  => ['apple', 'kiwi'],
//   'yellow' => ['banana'],
// ]