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php返回json数据函数实例,php返回json实例

本文实例讲述了php返回json数据函数的用法,分享给大家供大家参考。具体方法如下:

json_encode()函数用法:

echo json_encode(array('a'=>'bbbb','c'=>'ddddd');

这样就会生成一个标准的json格式的数据

<&#63;php
//需要执行的SQL语句
//单条
$sql="select id,name from tbl_user where id=1";
//多条数据
//$sql="select id,name from tbl_user";
//调用conn.php文件进行数据库操作 
require('Conn.php');
//提示操作成功信息,注意:$result存在于conn.php文件中,被调用出来 
if($result) 
{
// $array=mysql_fetch_array($result,MYSQL_ASSOC);
 
 
 /*数据集
 $users=array();
 $i=0;
 while($row=mysql_fetch_array($result,MYSQL_ASSOC)){
  echo $row['id'].'-----------'.$row['name'].'</br>';
  $users[$i]=$row;
  $i++;
 }
 echo json_encode(array('dataList'=>$users));
 */
 /*单条数据*/
 $row=mysql_fetch_row($result,MYSQL_ASSOC);
 
 echo json_encode(array('jsonObj'=>$row));
}
mysql_free_result($result);
//释放结果
mysql_close();
//关闭连接
&#63;>

上面是数据库生成json数据
单条数据:{"jsonObj":{"id":"1","name":"lmw"}}
多条数据:{"dataList":[{"id":"1","name":"lmw"},{"id":"2","name":"xxj"},{"id":"3","name":"xxxj"}]}

现在很多情况下,我们需要程序返回一个Json格式的结果,比如:

{
"UserKeyGetResponse":
{"RequestName":"e99e6d63e8c712d7699f52978a","api_key_value":"41954dd9b1cb6a95802eab6810"},
"error_response":
{"code":"NO_ERROR","msg":"获取系统参数成功"}
}
可以将结果写成这样的数组形式:
$respon = array('UserKeyGetResponse' => array('RequestName' => $api_request_name, 'api_key_value' => $api_key_value),
'error_response' => array('code' => 'NO_ERROR', 'msg' => '获取系统参数成功'));

代码如下:

function arrayRecursive(&$array, $function, $apply_to_keys_also = false)
{
  static $recursive_counter = 0;
  if (++$recursive_counter > 1000) {
    die('possible deep recursion attack');
  }
  foreach ($array as $key => $value) {
    if (is_array($value)) {
      arrayRecursive($array[$key], $function, $apply_to_keys_also);
    } else {
      $array[$key] = $function($value);
    }
    if ($apply_to_keys_also && is_string($key)) {
      $new_key = $function($key);
      if ($new_key != $key) {
        $array[$new_key] = $array[$key];
        unset($array[$key]);
      }
    }
  }
  $recursive_counter--;
}
g:
$error_respon = array('code' => 'ERROR_MSG_MISS', 'msg' => '消息不存在');
echo JSON($array);

运行结果为:

{"code":"ERROR_MSG_MISS","msg":"消息不存在"}

客户端就可以解析这个结果了,当然错误码要用数字代替。
这样就好多了我们显示的直接是中文了,当然显示那个16进制的编码也是没有问题的。

希望本文所述对大家的PHP程序设计有所帮助。

PHP 怎麼处理後台返回的json数据

你是用jquery发送的ajax请求!可以使用$.each(msg,function(item,index){
//item代表每个对象!
//index代表索引
});
 

php实现http抓取想要在本地实现sae里fetchurl函数的功可以,返回json格式数据,指导

参考sae的分布式抓取http页面的原理/

参考地址:e.sae.sina.com.cn/...pstore
 

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