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PHP的$_POST为什么获取不到数据？

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Jun 06, 2016 pm 08:29 PM

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PHP的“$_POST”获取不到数据是因为传输方式错误，其解决办法就是将PHP用“file_get_contents("php://input")”获取输入流的方式接收即可。

PHP的$_POST为什么获取不到数据？

PHP的$_POST为什么获取不到数据？

一般在ajax提交的时候会出现这种情况

当我们在ajax参数设置 contentType: 'application/json; charset=utf-8', 用file_get_contents("php://input")获取值 $_POST是获取不到的

1.检查头信息content-type是不是为“content-type:application/x-www-form-urlencoded" 这种传输是以表单的方式提交数据php使用$_POST方式接受。

2.如果头信息content-type是不是为“content-type:application/json"这种传输是以json方式提交数据，php需要使用file_get_contents("php://input")获取输入流的方式接收。

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