PHP server-side proactive data-to-client solution

1. Using a hidden iframe on the client, its SRC points to the server-side control code, such as server.php

2. In the server.php through the while implementation of the never-ending request, within the loop, implement a breakpoint, such as sleep (2), representing every 2 seconds cycle

3. Output the fragment code to the client in each loop

echo "";

Ob_flush ();

Flush ();

The server-side overall test code is implemented as follows:

        $i = 0;        while ($i <) {            echo ';            Ob_flush ();            Flush ();            Sleep (2);            $i + +;        }

The above describes the PHP server-side proactive data-to-client solution, including the aspects of the content, I hope that the PHP tutorial interested in a friend helpful.

