json数据进行格式化

<?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);  
  




?>