arrayutils
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sortKey()

The sortKey() method sort an array by keys using a function or default sort function
Example.php
<?php use kim\present\utils\arrays\ArrayUtils;
​
$arrayUtils = ArrayUtils::from([
"orange" => 1,
"banana" => 2,
"apple" => 3,
"raspberry" => 4,
"kiwi" => 5]);
​
​
$arrayUtils->sortKey();
// expected output: [
// "apple" => 3,
// "banana" => 2,
// "kiwi" => 5,
// "orange" => 1,
// "raspberry" => 4
//]
​
$arrayUtils->sortKey(function($a, $b){ return strcmp($a, $b) * -1; })
// expected output: [
// "raspberry" => 4,
// "orange" => 1,
// "kiwi" => 5,
// "banana" => 2,
// "apple" => 3
//]

Syntax

$arrayUtils->sortKey(?callable $callback = null) : ArrayUtils;

Parameter

  • $callback
    A function to compare element for sort, taking two arguments:
    • $a The comparison target A
    • $b The comparison target B
    Default is NULL, If is null, Sort by default sort function.

Return value

  • A sorted array.

Prefixing

$arrayUtils->sortKeyAs(?callable $callback = null) : array;
ArrayUtils::sortKeyFrom(iterable $from, ?callable $callback = null) : ArrayUtils;
ArrayUtils::sortKeyFromAs(iterable $from, ?callable $callback = null) : array;

References

Last modified 2yr ago