- var_dump: documentation ( source)
- json_decode: documentation ( source)
<?php
var_dump(json_decode('{"error":1,"msg":"\\u041f\\u0440\\u043e\\u0438\\u0437\\u043e\\u0448\\u043b\\u0430 \\u043e\\u0448\\u0438\\u0431\\u043a\\u0430 #1, \\u043f\\u043e\\u043f\\u0440\\u043e\\u0431\\u0443\\u0439\\u0442\\u0435 \\u0435\\u0449\\u0451 \\u0440\\u0430\\u0437"}', true));