79 lines
1.9 KiB
PHP
79 lines
1.9 KiB
PHP
<?php
|
|
|
|
declare(strict_types=1);
|
|
|
|
/*
|
|
* This file is a part of dflydev/dot-access-data.
|
|
*
|
|
* (c) Dragonfly Development Inc.
|
|
*
|
|
* For the full copyright and license information, please view the LICENSE
|
|
* file that was distributed with this source code.
|
|
*/
|
|
|
|
namespace Dflydev\DotAccessData;
|
|
|
|
class Util
|
|
{
|
|
/**
|
|
* Test if array is an associative array
|
|
*
|
|
* Note that this function will return true if an array is empty. Meaning
|
|
* empty arrays will be treated as if they are associative arrays.
|
|
*
|
|
* @param array<mixed> $arr
|
|
*
|
|
* @return bool
|
|
*
|
|
* @psalm-pure
|
|
*/
|
|
public static function isAssoc(array $arr): bool
|
|
{
|
|
return !count($arr) || count(array_filter(array_keys($arr), 'is_string')) == count($arr);
|
|
}
|
|
|
|
/**
|
|
* Merge contents from one associtative array to another
|
|
*
|
|
* @param mixed $to
|
|
* @param mixed $from
|
|
* @param DataInterface::PRESERVE|DataInterface::REPLACE|DataInterface::MERGE $mode
|
|
*
|
|
* @return mixed
|
|
*
|
|
* @psalm-pure
|
|
*/
|
|
public static function mergeAssocArray($to, $from, int $mode = DataInterface::REPLACE)
|
|
{
|
|
if ($mode === DataInterface::MERGE && self::isList($to) && self::isList($from)) {
|
|
return array_merge($to, $from);
|
|
}
|
|
|
|
if (is_array($from) && is_array($to)) {
|
|
foreach ($from as $k => $v) {
|
|
if (!isset($to[$k])) {
|
|
$to[$k] = $v;
|
|
} else {
|
|
$to[$k] = self::mergeAssocArray($to[$k], $v, $mode);
|
|
}
|
|
}
|
|
|
|
return $to;
|
|
}
|
|
|
|
return $mode === DataInterface::PRESERVE ? $to : $from;
|
|
}
|
|
|
|
/**
|
|
* @param mixed $value
|
|
*
|
|
* @return bool
|
|
*
|
|
* @psalm-pure
|
|
*/
|
|
private static function isList($value): bool
|
|
{
|
|
return is_array($value) && array_values($value) === $value;
|
|
}
|
|
}
|