How do I display a loading bar when my php page performs a task? [duplicate]

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I have a page to send a mailing list in PHP. I need that while the page is running send something showing that there is a task in progress.

Thank you!

    
asked by anonymous 10.03.2016 / 14:47

1 answer

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Maybe you can put some effect on the submit button, like this example that Boostrap uses.

link

You can view something related in the following post: link

I hope I have helped!

    
10.03.2016 / 15:36