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<?php
namespace Blocktrail\SDK;
abstract class Util {
public static function all(callable $fn, array $arr) {
$allvalues = array_map($fn, $arr);
return count(array_unique($allvalues)) === 1 && end($allvalues) === true;
}
public static function arrayMapWithIndex(callable $fn, $arr) {
$result = [];
$assoc = null;
foreach ($arr as $idx => $value) {
list($newidx, $newvalue) = $fn($idx, $value);
if ($assoc === null) {
$assoc = $newidx !== null;
if ($newidx === null && $assoc || $newidx !== null && !$assoc) {
throw new \Exception("Mix of non assoc and assoc keys");
if ($assoc) {
$result[$newidx] = $newvalue;
} else {
$result[] = $newvalue;
return $result;
blocktrail /
blocktrail-sdk-php
