click on the button to run php code and echo result

问题

I want to implement this script: http://www.daniloaz.com/en/560/programming/backup-de-bases-de-datos-mysql-con-php/

on my website to backup all the database at the end of the day.

May I know is it possible for me to put a button to click and run the script and echo the status after it finish without refreshing the page or bring me to a new page.

as at the moment i everyday need to go to the link: www.example.com/backup.php to do daily backup, I want this to ease my job :)

any idea how to do this?

回答1:

what type of button? if html yes it's easy

have a button on what ever page you want along with a div like so:

<input type="button" name="perform_backup"  onclick="do_backup()"><div id="results"> No backup has been performed yet</>

then have a javascript which calls your backup php script like this

<script>  
 function do_backup(){
   var xhReq = new XMLHttpRequest();
   var request = "http://www.example.com/backup.php " // this will prepare a request to your server
   xhReq.open("GET", request, false);  // send a request
   xhReq.send(null);
   document.getElementsByID("results").innerHTML=xhReq.responseText  /// this will display results

   }
</script>

then I would modify the script on your server to give more then a boolean variable but that's up to you. But whatever you choose it will be seen inside <div id="results"> , without loading a new page... This method is called AJAX for future questions

来源：https://stackoverflow.com/questions/16377985/click-on-the-button-to-run-php-code-and-echo-result