GoLang Ds\Sequence::apply

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PHP Ds\Sequence::apply

PHP original manual for Ds\Sequence::apply [ show | php.net ]

Ds\Sequence::apply

(PECL ds >= 1.0.0)

Ds\Sequence::applyUpdates all values by applying a callback function to each value

Description

abstract public void Ds\Sequence::apply ( callable $callback )

Updates all values by applying a callback function to each value in the sequence.

Parameters

callback

mixed callback ( mixed $value )

A callable to apply to each value in the sequence.

The callback should return what the value should be replaced by.

Return Values

No value is returned.

Examples

Example #1 Ds\Sequence::apply() example

<?php
$sequence 
= new \Ds\Sequence([123]);
$sequence->apply(function($value) { return $value 2; });

print_r($sequence);
?>

The above example will output something similar to:

Ds\Vector Object
(
    [0] => 2
    [1] => 4
    [2] => 6
)