Post cannot get form data

This time I will bring you Post’s inability to obtain form data. What are the precautions to solve Post’s inability to obtain form data? The following is a practical case, let’s take a look.

Problem description

When using vue-axios to post data to the backend, the PHP side cannot obtain the posted data.

Problem Solving

Modify php.ini configuration

Find the php.ini

configuration file, find the enable_post_data_reading variable, and modify it to Open the state, comment out the prefix

; Whether PHP will read the POST data.
; This option is enabled by default.
; Most likely, you won't want to disable this option globally. It causes $_POST
; and $_FILES to always be empty; the only way you will be able to read the
; POST data will be through the php://input stream wrapper. This can be useful
; to proxy requests or to process the POST data in a memory efficient fashion.
; http://php.net/enable-post-data-reading
enable_post_data_reading = On  //大约656行，修改此条

After modifying the configuration, I found that it still didn't work, so I continued to check the information.

Getting non-form data

After collecting information, I found that vue-axios posts non-form data to the backend (different from Ajax). You need to use php://input when getting non-form data.

$raw = file_get_contents('php://input');//获取非表单数据
echo $raw;//输出结果

PS: When posting, the front-end request header must be set to

headers: {
  "Content-type": "application/json; charset=utf-8"
}

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the PHP Chinese website!

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