php 解析json问题

Question

header('Content-type:text/html;charset=utf-8');
$lines = file('http://ditu.google.cn/maps?output=js&q=快餐&sll=39.886557,116.336975&radius=5&start=0');  
foreach ($lines as $line_num => $line) {
$s.= ($line);
}
$s= iconv('GBK', 'UTF-8',$s);
//echo $s.'<br><br><br>===========================================<br><br><br>';
$start_str = "w.loadVPage(";$end_str = ",\"state\");}";$a = strpos($s,$start_str);$b = strpos($s,$end_str);$string= substr($s,$a+strlen($start_str),$b-$a-strlen($start_str));//print_r($string);print_r(json_decode($string,true));我php版本为5.2
print_r(json_decode($string,true))没有任何输出，各位大侠，这里的$string要怎样遍历呢？

Answer 1

楼主，你的字符串保存在json对象里了吗？

Answer 2

我上面代码中的$string已经是json的格式了
php中json是这样用的啊：
$json='{"item1":[{"name":[{"chen":"chenling","ling":"chenli"}],"sex":"男","age":"25"},{"name":"sun","sex":"女","age":"24"}]}';
$J=json_decode($json);
print_r($J);

Answer 3

你检查一下你的$string是否已经保存成相关数组了。

Answer 4

你也知道要这样的：{"item1":[{"name":[{"chen":"chenling","...
但是读到的是这样的：{title:"快餐 - Google 地图",url:"/maps?q=%E5%BF%AB%E9%A4%...区别在于名称没有用引号括起

Answer 5

java可以用json来处理，不知道php有没有这样的json处理类呢

Answer 6

有，你可以搜索一下
http://www.google.com.hk/search?hl=zh-CN&newwindow=1&safe=strict&rls=com.microsoft:zh-cn:IE-SearchBox&rlz=1I7BJYT_zh-CN&&sa=X&ei=--t0TOfJEMWrcZDjhY8G&ved=0CBkQBSgA&q=php+json&spell=1

Answer 7

偷懒不是好主义！我帮你看吧，到这篇文章处下载一个json类 http://www.eb163.com/blog/blog.php?blogid=34在你的代码后面加上：
require_once('JSON.php');
$json = new Services_JSON();
$value = $json->decode($string); 
print_r($value);于是得到stdClass Object
(
    [title] => 快餐 - Google 地图
    [url] => /maps?q=%E5%BF%AB%E9%A4%90\x26sll=39.886557,116.336975\x26radius=5\x26start=0\x26ie=UTF8\x26hq=%E5%BF%AB%E9%A4%90\x26hnear=
    [urlViewport] => 
    [ei] => ZcJ1TMDlD4WcvgPG1vz4Bg
    [form] => stdClass Object
        (
            [selected] => q
            [q] => stdClass Object
                (
                    [q] => 快餐
                    [attr] => 方圆 8 公里之内
                    [what] => 快餐
                    [near] => 
                )            [d] => stdClass Object
                (
                    [saddr] => 
                    [daddr] => 
                    [dfaddr] => 
                )            [geocode] => 
        )    [query] => stdClass Object
        (
            [type] => l
        )    [viewport] => stdClass Object
        (
            [center] => stdClass Object
                (
                    [lat] => 0
                    [lng] => 0
                    [alt] => stdClass Object
                        (
                            [ll] => 34525791589578067142
                            [mode] => 2
                        )                )            [span] => stdClass Object
                (
                    [lat] => 0.006295
                    [lng] => 0.006295
                )            [mapType] => 
        )    [modules] => Array
        (
            [0] => 
            [1] => truffle
            [2] => strr
            [3] => qopa
            [4] => mpcl
            [5] => appiw
        )    [overlays] => stdClass Object
        (
            [sxcar] => 
            [ers] => Array
                (
                    [0] => stdClass Object
                        (
                            [id] => A
                            [cid] => 10986699045790086426
                            [latlng] => stdClass Object
                                (
                                    [lat] => 0
                                    [lng] => 0
                                    [alt] => stdClass Object
                                        (
                                            [ll] => 34525821589557137026
                                            [mode] => 2
                                        )                                )                            [image] => http://maps.gstatic.cn/intl/zh-CN_cn/mapfiles/erA.png
                            [sprite] => stdClass Object
                                (
                                    [width] => 20
                                    [height] => 34
                                    [top] => 0
                                    [image] => http://maps.gstatic.cn/intl/zh-CN_cn/mapfiles/red_ers_A_J2.png
                                )                            [icon_id] => A
                            [drg] => 1
                            [laddr] => 北京市宣武区广安门外大街180号 (必胜客(广外华联店))
                            [geocode] => CWeweQ1LFZp2FeepYAIdgCvvBiEa9XB2kph4mA
                            [name] => 必胜客(广外华联店)
                            [infoWindow] => stdClass Object
                                (
                                    [title] => 必胜客(广外华联店)
                                    [addressLines] => Array
                                        (
                                            [0] => 北京市宣武区广安门外大街180号
  
......

Answer 8

xuzuning 用的是什么编辑器？在浏览器中输出的很乱...stdClass Object ( [title] => 快餐 - Google 地图 [url] => /maps?q=%E5%BF%AB%E9%A4%90\x26sll=39.886557,116.336975\x26radius=5\x26start=0\x26ie=UTF8\x26hq=%E5%BF%AB%E9%A4%90\x26hnear= [urlViewport] => [ei] => Qcl1TJXtEoaVkAW-wZWrCw [form] => stdClass Object ( [selected] => q [q] => stdClass Object ( [q] => 快餐 [attr] => 方圆 8 公里之内 [what] => 快餐 [near] => )

Answer 9

是zendstudio 的Debug Output?

Answer 10

本帖最后由 xuzuning 于 2010-08-26 11:09:29 编辑