Exploring methods to detect when a PHP page has been printed using the 'ctrl+p' shortcut and then subsequently updating

Hey there! I'm currently managing a php website that functions as an accounting system.

Within this system, there are receipts, invoices, and other forms of documentation in use.

However, I've encountered a problem with the main table in my mySQL database. Specifically, I have a variable called how_much_ printed within Main_table that needs to be updated through interactions using php and mySql. This update needs to occur every time a user even uses ctrl P to print.

Any suggestions on how I can achieve this?

This need for constant updating stems from legal requirements that dictate the inclusion of the source document on the initial copy.

I initially attempted to prevent printing by using css to block it and opted to separately print web pages instead. However, this solution appears unattractive. Does anyone know of a more elegant workaround?

Your assistance in resolving this issue is greatly appreciated. Yan

javascriptphphtmlmysqlcss

Answer №1

Prevent printing with Ctrl + P using jQuery, then trigger an ajax request to a PHP server to update the 'how_much_printed' field. Once updated, print the document upon successful callback of the ajax request.

jQuery(document).bind("keyup keydown", function(e){
if(e.ctrlKey && e.keyCode == 80){
     e.preventDefault();
      $.ajax({
        method: "POST",
        url: "some.php",
        data: { },
        success: function(data){
          window.print();
        }
      })
    }
});

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