<?php  

/** Json数据格式化

* @param  Mixed  $data   数据

* @param  String $indent 缩进字符，默认4个空格

* @return JSON

*/

function jsonFormat($data, $indent=null){  

    // 对数组中每个元素递归进行urlencode操作，保护中文字符

    array_walk_recursive($data, 'jsonFormatProtect');  

    // json encode

    $data = json_encode($data);  

    // 将urlencode的内容进行urldecode

    $data = urldecode($data);  

    // 缩进处理

    $ret = '';

    $pos = 0;

    $length = strlen($data);

    $indent = isset($indent)? $indent : '    ';

    $newline = "\n";

    $prevchar = '';

    $outofquotes = true;  

    for($i=0; $i<=$length; $i++){  

        $char = substr($data, $i, 1);  

        if($char=='"' && $prevchar!='\\'){

            $outofquotes = !$outofquotes;

        }elseif(($char=='}' || $char==']') && $outofquotes){

            $ret .= $newline;

            $pos --;

            for($j=0; $j<$pos; $j++){

                $ret .= $indent;

            }

        }  

        $ret .= $char;  

        if(($char==',' || $char=='{' || $char=='[') && $outofquotes){

            $ret .= $newline;

            if($char=='{' || $char=='['){

                $pos ++;

            }  

            for($j=0; $j<$pos; $j++){

                $ret .= $indent;

            }

        }  

        $prevchar = $char;

    }  

    return $ret;

}  

/** 将数组元素进行urlencode

* @param String $val

*/

function jsonFormatProtect(&$val){

    if($val!==true && $val!==false && $val!==null){

        $val = urlencode($val);

    }

}  

header('content-type:application/json;charset=utf8');  

$arr = array(

    'status' => true,

    'errMsg' => '',

    'member' =>array(

        array(

            'name' => '李逍遥',

            'gender' => '男'

        ),

        array(

            'name' => '赵灵儿',

            'gender' => '女'

        )

    )

);  

echo jsonFormat($arr);  

?>