title: I want to make a progress bar for my php operation which takes long time to complete
body: <p>Whenever I try to run a long operation with php it prevent the page from loading the other data before it completes the operation. (I know as php  is serverside execution it does likewise).</p>
  
  <p>But how can I use a progress bar to solve this issue so that the page will load and then shows a progress where the javascript call will initiate a php page to compile and show its result in the front </p>
  
  <p>I here does a conversion process of video hence its sure the time depends on the file size it converts and so I really need to show the progress bar on the page where it navigate to.</p>