Arrays
Table of Contents
Packages
Functions
- array_remap() : array<string|int, mixed>
- Applies a (generator) callback to the elements of a given array, allowing the remapping of its keys in the process.
- array_zip() : array<string|int, array<string|int, TValue>>
- Perform a zip operation on multiple arrays.
- array_interchange() : array<string|int, mixed>
- Interchange the values of two elements of an array.
Functions
array_remap()
Applies a (generator) callback to the elements of a given array, allowing the remapping of its keys in the process.
array_remap(callable(TKey $key, TValue $value): mixed $callback, iterable<string|int, mixed> $array) : array<string|int, mixed>
array_remap() returns an array containing the results of applying a callback with the corresponding key and value of array used as arguments.
If callback is a generator function,
then it's possible to provide a new key for the resulting array element using
yield from $key => $value.
If the same key is yielded more than once, then the later yield will override the previous one.
Parameters
- $callback : callable(TKey $key, TValue $value): mixed
-
A callable to run for each key-value pair in the array.
- $array : iterable<string|int, mixed>
Return values
array<string|int, mixed> —Returns an array containing the results of applying the callback function to the corresponding key-value pair of array used as arguments for the callback.
array_zip()
Perform a zip operation on multiple arrays.
array_zip(array<string|int, TValue> $array, array<string|int, TValue> ...$arrays) : array<string|int, array<string|int, TValue>>
Parameters
- $array : array<string|int, TValue>
-
An array to zip.
- $arrays : array<string|int, TValue>
-
Supplementary list of array arguments to zip.
Return values
array<string|int, array<string|int, TValue>> —Returns an array whose elements are each an array holding the elements of the input arrays of the same index.
array_interchange()
Interchange the values of two elements of an array.
array_interchange(array<string|int, mixed> $array, TKey $key1, TKey $key2) : array<string|int, mixed>
If a key doesn't exist in the array, then the other key will be set
to null, and a warning will be thrown.
Parameters
- $array : array<string|int, mixed>
- $key1 : TKey
- $key2 : TKey