如何在从ob_start（）打印缓冲区内容之前显示加载动画？

Question

I have a script that runs for quite a while and I am using ob_start() to buffer the output and print the result after the script finishes executing.

I need to show some loading animation while the script executes and replace it with the output when the script finishes executing.

I know that it can be done quite beautifully with JavaScript and jQuery. I was just wondering whether it can be done using PHP alone?

Is there any library that allows PHP to do this?

Answer 1

Unfortunately you can't use PHP (Which is running on the server) to alter the HTML that has already been sent to the client.
In other words you are probably going to have to use JavaScript to achieve what you want to do.