解决php json_encode 出现的中文转码、乱码问题

<span 1</span> <span //</span><span  防止json中文转码</span>
<span 2</span> <span function</span> jsonEncodeWithCN(<span $data</span><span ) {
</span><span 3</span>     <span return</span> <span preg_replace</span>("/\\\u([0-9a-f]{4})/ie", "iconv('UCS-2BE', 'UTF-8', pack('H4', '$1'))", json_encode(<span $data</span><span ));
</span><span 4</span> <span }
</span><span 5</span> 
<span 6</span> <span $arr</span> = <span array</span>('a'=>'测试', b=>'hello'<span );
</span><span 7</span> 
<span 8</span> <span echo</span> jsonEncodeWithCN(<span $arr</span>);