- json_decode: documentation ( source)
<?php
echo json_decode('{"error_message":"\u064a\u062a\u0639\u0630\u0631 \u0627\u0644\u0639\u062b\u0648\u0631 \u0639\u0644\u0649 \u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0625\u0634\u0639\u0627\u0631."}');