Working with an MVC framework and the controller renders the page in the destructor. I am downloading a file through php, so at the end of the action the script should end.
How to end the script without calling the destructor?
Is there a better solution?
exit and die call the destructor.
See this answer. Try creating a destructor in the class that downloads the file that checks if a file was indeed sent to the browser, and if so, call exit() in that destructor.
As David said: you'll need to call exit() inside a destructor to stop it.
If however you just want to halt the visual output caused by these destructors but not any other side-effects (file closing, database connection closing) they might do, then it's best to just kill the further output but leave the destructors alone. Which in my opinion would be the route to take since destructors tend to be there for one important reason: cleaning up.
you can do that by manipulating buffered output:
<?php
class Tester{
public function devNull($string){
return "";
}
public function runAndBreak(){
print "run" . PHP_EOL;
// if any output buffer is working, flush it and close it
if(ob_get_level()) ob_end_flush();
// redirect new buffer to our devNull
ob_start(array($this,'devNull'));
exit();
print "still running";
}
function __destruct(){
print "destructor" . PHP_EOL;
}
}
$t = new Tester();
$t->runAndBreak();
this will only print run and not what's in the destructor. It's done by giving your own callback routine to ob_start that handles and then returns the output. In our case here we simply discard it by returning an empty string.
This will certainly stop your script but be careful, if you run such a server where one process serves several PHP requests those will stop as well:
$pid = getmypid();
exec("kill $pid");
exec("TSKILL $pid");
breakto kill the loop, all in all Not sure whats going on and how so I can only speculate.