Ds\Vector::apply
(PECL ds >= 1.0.0)
Ds\Vector::apply — Updates all values by applying a callback function to each value
Description
public Ds\Vector::apply ( callable $callback ) : void
Updates all values by applying a callback function to each value in the vector.
Parameters
-
callback -
callback ( mixed $value ) : mixed
A callable to apply to each value in the vector.
The callback should return what the value should be replaced by.
Return Values
No value is returned.
Examples
Example #1 Ds\Vector::apply() example
<?php
$vector = new \Ds\Vector([1, 2, 3]);
$vector->apply(function($value) { return $value * 2; });
print_r($vector);
?> The above example will output something similar to:
Ds\Vector Object
(
[0] => 2
[1] => 4
[2] => 6
)
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https://www.php.net/manual/en/ds-vector.apply.php