Function __global->array_reduce
Definitions
sources_custom/phpstub.php
- Iteratively reduce the array to a single value using a callback function.
- Visibility: public
- Is abstract?: No
- Is static?: No
- Is final?: No
- Returns: int
Parameters
| Name | Type | Passed by reference? | Variadic? | Default | Set | Range | Description |
|---|---|---|---|---|---|---|---|
| $input | array | No | No | required parameter | N/A | N/A | Input |
| $callback | mixed | No | No | required parameter | N/A | N/A | Process function |
| $initial | ?integer | No | No | Null | N/A | N/A | Initial value (null: no initial) |
Returns
- Result (null: no initial given, and empty array given)
- Type: ?integer
- Set: N/A
- Range: N/A
Preview
Code (PHP)
/**
* Iteratively reduce the array to a single value using a callback function.
*
* @param array $input Input
* @param mixed $callback Process function
* @param ?integer $initial Initial value (null: no initial)
* @return ?integer Result (null: no initial given, and empty array given)
*/
function array_reduce(array $input, $callback, ?int $initial = null) : ?int
* Iteratively reduce the array to a single value using a callback function.
*
* @param array $input Input
* @param mixed $callback Process function
* @param ?integer $initial Initial value (null: no initial)
* @return ?integer Result (null: no initial given, and empty array given)
*/
function array_reduce(array $input, $callback, ?int $initial = null) : ?int