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Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code
<?php
$arr = [
'RoadServiceAutos' => [[
'RoadServices' => [['CountryAlpha2Code' => 'RU']]
]]
];
$arr['RoadServiceAutos'] = $arr['RoadServiceAutos'][0];
$arr['RoadServiceAutos']['RoadServices'] = $arr['RoadServiceAutos']['RoadServices'][0];
print_r($arr);