arrayutils
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map()

The map() method applies the callback to the elements
Example.php
<?php use kim\present\utils\arrays\ArrayUtils;
​
$arrayUtils = ArrayUtils::from(range(1,10));
​
//Squared all elements
$arrayUtils->map(function($num){ return $num * $num; });
// expected output: [1, 4, 9, 16, 25, 36, 49, 64, 81, 100]

Syntax

$arrayUtils->map(callable $callback) : ArrayUtils;

Parameter

  • $callback
    A function that produces an element of the new Array, taking three arguments:
    • $value The current element being processed in the array.
    • $key The index of the current element being processed in the array.
    • $array The array every was called upon.

​

Return value

  • A new array with each element being the result of the callback function.

Prefixing

$arrayUtils->mapAs(callable $callback) : array;
ArrayUtils::mapFrom(iterable $from, callable $callback) : ArrayUtils;
ArrayUtils::mapFromAs(iterable $from, callable $callback) : array;

References

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Last modified 2yr ago