Json_encode alternative

For PHP5.3 users who want to emulate JSON_UNESCAPED_UNICODE, there is simple way to do it:
<?php
function my_json_encode($arr)
{
        //convmap since 0x80 char codes so it takes all multibyte codes (above ASCII 127). So such characters are being "hidden" from normal json_encoding
        array_walk_recursive($arr, function (&$item, $key) { if (is_string($item)) $item = mb_encode_numericentity($item, array (0x80, 0xffff, 0, 0xffff), 'UTF-8'); });
        return mb_decode_numericentity(json_encode($arr), array (0x80, 0xffff, 0, 0xffff), 'UTF-8');

}
?>

Source: man.hubwiz.com

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