Solve the problem that php cannot accept post value

When this happens, we need to check the value of the parameter

Content-Type: in our header

php://inputCan read unprocessed POST data. Compared with $HTTP_RAW_POST_DATA, it puts less pressure on memory and does not require special php.ini settings. php://input cannot be used for enctype=multipart/form-data

But I summarized it through code comparison and the results are as follows:

## When #1.

Coentent-Type is application/x-www-data-urlencoded and multipart/form-data, PHP will request the data When passed to $_POST

2. When PHP cannot recognize the

Content-Type type, the corresponding data in the http request package will be filled in the variable $HTTP_RAW_POST_DATA.

3, as long as

Content-Type is not multipart/form-data, PHP will not send http request body data Fill in php://input, otherwise everything else will work. The length to fill in, specified by Content-Length.

4, only when

Content-Type is application/x-www-data-urlencoded, php://input data will follow $_POSTThe data is consistent.

5,

php://input is the same as HTTPRAWPOSTDATA∗∗., but php://input is more efficient than **HTTP_RAW_POST_DATA and does not require configurationphp.ini

6.

httpRequested in the GET format, the body body is empty.

Solution

Modify php.ini

enable_post_data_reading = On

always_populate_raw_post_data = On

Restart apache to solve the problem.

Recommended: "

PHP Tutorial"

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