PHP How to print the page and determine whether the print success (printer), I use Window.print ()! But this function does not return a value

PHP How to print the page and determine if the print is successful (printer), I use Window.print ()! But this function does not return a value
Can't tell if the print is successful! I'm going to add a piece of data to the database after I've judged the print to be successful! The prawn guys helped ... What do I do if I print it in a different way? It's better to be simple, to implement this function ok!

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There is no print success that has to be judged by the naked eye, unless the hardware has to provide such an interface, otherwise it can only send a printed instruction.
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Also add Window.print () is the JS function. PHP is run on the server side unless you intend to print something on the server or be able to share the printer print.
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There is no print success that has to be judged by the naked eye, unless the hardware has to provide such an interface, otherwise it can only send a printed instruction.

But I'm going to add a piece of data to the database after making sure the print is successful! How do I trigger this program? Determine if there is a click on the "Print" button? If you have clicked, but the printer there is a problem not print success, but the program is triggered, this is a little pay!

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