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I am calling a php script over ajax to do some database maintenance. If the user closes the page, hits back, or clicks a link, will the php script be fully executed? Is there a way to do it?
Maybe if the php script called the exec() method or something similar, which would in turn call a script via the console as such:
$ php /var/www/httpdocs/maintenance.php
?
As long as the user agent (browser, etc.) has fully sent the request, the server has all it needs and will complete the request and try to send back a response.
In fact, this sort of “pinging” behavior is often used for “heartbeat”-like processes that keep a service warm or perform periodic maintenance.