使用JSON实现数据的跨域传输的php代码
后台profile.php代码:
复制代码 代码如下:
$arr = array(
'firstname' => iconv('gb2312', 'utf-8', '非诚'),
'lastname' => iconv('gb2312', 'utf-8', '勿扰'),
'contact' => array(
'email' =>'fcwr@jb51.net',
'website' =>'http://www.jb51.net',
)
);
//将一个数组JSON
$json_string = json_encode($arr);
//此处注意,双引号能对里面的变量当变量进行处理,单引号则不会
echo "getProfile($json_string)";
?>
需要指出的是,在非UTF-8编码下,中文字符将不可被encode,结果会出来空值,所以,如果你使用 gb2312编写PHP代码,那么就需要将包含中文的内容使用iconv或者mb转为UTF-8再进行json_encode。
前台index.html代码:
复制代码 代码如下:
将JSON格式的数据直接赋值给javascript中的变量,就变成数组了,接下来操作起来就会非常的方便,此处如果使用XML做为数据传输,后续操作就不方便喽。
很显然,当index.html调用profile.php时,JSON字符串生成,并作为参数传入getProfile,然后将昵称插入到div 中,这样一次跨域数据交互就完成了
调用index.html
输出:非诚

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