PHP
gettest.php:$value["name"]= urlencode("myname");
$value["pass"]= urlencode("pass888");
$value["age"]=30;
$js_value = json_encode($value);
$url="http://127.0.0.1:8080/get.php?id=100&value=$js_value";
$html = file_get_contents($url);
echo $html;
?>
get.php:
$x = json_decode(urldecode($_GET["value"]));
echo $x;
?>
在IE中运行: http://127.0.0.1:8080/gettest.php
运行后得到的是空白,应该能把json的数据打印出来吧
回复讨论(解决方案)
你在 gettest.php 中 echo $url; 看一下参数是否正确
get.php 中 json_decode 后的是对象,所以 echo $x; 是不妥当的
另外不需要 urldecode,你 echo $_GET["value"]; 就可知道
在 gettest.php 中 echo $url; 结果是:
http://127.0.0.1:8080/get.php?id=100&value={"name":"myname","pass":"pass888","age":30}
在get.php中, echo $_GET["value"]; 结果是:
{\"name\":\"myname\",\"pass\":\"pass888\",\"age\":30}
我的目的是希望在get.php中吧 jsong string 还原为json对象,并打印出来。 所以我修改了下代码
getp.php代码修改为:
$x = json_decode(urldecode($_GET["value"]));
//echo $_GET["value"];
var_dump($x);
?>
显示是: NULL . 这个好像不应该啊
我在同一个php文件中调用 json_encode, json_decode 就没问题。 不同页面下就不行了,不知怎么回事
在get.php中, echo $_GET["value"]; 结果是:
{\"name\":\"myname\",\"pass\":\"pass888\",\"age\":30}
那么就需要 stripslashes 而不是 urldecode
$x = json_decode(stripslashes($_GET["value"]));
非常感谢。

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