json_encode如何防止汉字转义成unicode

<span>1</span><span>function</span> my_json_encode(<span>$arr</span><span>){
</span><span>2</span><span>//</span><span>convmap since 0x80 char codes so it takes all multibyte codes (above ASCII 127). So such characters are being "hidden" from normal json_encoding</span><span>3</span><span>array_walk_recursive</span>(<span>$arr</span>, <span>function</span> (&<span>$item</span>, <span>$key</span>) { <span>if</span> (<span>is_string</span>(<span>$item</span>)) <span>$item</span> = mb_encode_numericentity(<span>$item</span>, <span>array</span> (0x80, 0xffff, 0, 0xffff), 'UTF-8'<span>); });
</span><span>4</span><span>return</span> mb_decode_numericentity(json_encode(<span>$arr</span>), <span>array</span> (0x80, 0xffff, 0, 0xffff), 'UTF-8'<span>);
</span><span>5</span> }