PHP input stream php://input Example of sending image stream to server

 name:
 age:

Submit the form to the server, and the server uses file_get_contents to get the php://input content:

$content = file_get_contents("php://input");
echo $content; //Output name=tom&age=22

Instructions on php://input from the official website , the variable $HTTP_RAW_POST_DATA is repeatedly mentioned. This variable is actually the same as the content of file_get_contents(php://input). If you want to enable this variable, you need to modify the configuration file, find the always_populate_raw_post_data option, set it to On, and then restart the web server.

Using php://input does not require modifying the php configuration file. In project applications, such as taking pictures with the camera, uploading and saving, you can use php://input. After the client takes a photo, it sends the image stream to the server. The server uses file_get_getcontents('php://input') to get the image stream, and then saves the image stream to a file. This file is the image.