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Homephp教程php手册php获取post中的json数据的实现方法

最近用到ext与PHP交互,ext把json数据post给PHP,但在PHP里面$_post获取不到,$_REQUEST也获取不到,但是通过firedebug看到的请求信息确实是把JSON数据post给了PHP,这什么情况

突然想到了以前接触过flash将图片二进制流传给php,灵机一动用$GLOBALS['HTTP_RAW_POST_DATA']获取到了。
于是就深入的查了一下,原来PHP默认只识别application/x-www.form-urlencoded标准的数据类型,因此,对型如text/xml 或者 soap 或者 application/octet-stream 之类的内容无法解析,如果用$_POST数组来接收就会失败!故保留原型,交给$GLOBALS['HTTP_RAW_POST_DATA'] 来接收。

php的HTTP_RAW_POST_DATA
用Content-Type=text/xml 类型,提交一个xml文档内容给了php server,要怎么获得这个POST数据。
The RAW / uninterpreted HTTP POST information can be accessed with: $GLOBALS['HTTP_RAW_POST_DATA'] This is useful in cases where the post Content-Type is not something PHP understands (such as text/xml).
由于PHP默认只识别application/x-www.form-urlencoded标准的数据类型,因此,对型如text/xml的内容无法解析为$_POST数组,故保留原型,交给$GLOBALS['HTTP_RAW_POST_DATA'] 来接收。
另外还有一项 php://input 也可以实现此这个功能
php://input 允许读取 POST 的原始数据。和 $HTTP_RAW_POST_DATA 比起来,它给内存带来的压力较小,并且不需要任何特殊的 php.ini 设置。php://input 不能用于 enctype="multipart/form-data"。

应用

a.htm
代码如下:






post.php
代码如下:
echo file_get_contents("php://input");?>
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