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<?php
namespace Cocur\Chain\Link;
use Cocur\Chain\Chain;
/**
* FlatMap.
*
* @author Nicolas Reynis
*/
trait FlatMap
{
* @return Chain
public function flatMap(callable $callback)
$flattened = [];
foreach ($this->array as $index => $element) {
array
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
class MyClass { } $x = new MyClass(); $x->foo = true;
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion:
class MyClass { public $foo; } $x = new MyClass(); $x->foo = true;
$transformation = $callback($element, $index);
if (is_array($transformation)) {
array_push($flattened, ...$transformation);
} else {
$flattened[] = $transformation;
}
$this->array = $flattened;
return $this;
cocur /
chain
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: