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Request #61693 unregister_tick in registered function
Submitted: 2012-04-11 12:46 UTC Modified: 2012-04-11 15:07 UTC
From: hugosmail at gmail dot com Assigned:
Status: Wont fix Package: Unknown/Other Function
PHP Version: 5.4.0 OS: Windows
Private report: No CVE-ID: None
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 [2012-04-11 12:46 UTC] hugosmail at gmail dot com 
Description:
------------
Hi, while I'm trying call unregister_tick_function() in function executed by register_tick_function(), I get a "Warning: unregister_tick_function(): Unable to delete tick function executed at the moment"

I don't know, if this is a bug, but it may be very useful to call unregister like this.

Test script:
---------------
<?php
declare(ticks = 1);
function a() {
	echo "a";
	unregister_tick_function("a");
}
register_tick_function("a");

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 [2012-04-11 14:52 UTC] laruence@php.net 
there is a list to reservers user tick functions, when doing tick call, php will 
call user tick functions iteratively via go through that list.

if you delete the element which is calling, then the iterator will be messed .

of course, technically, it can be implemented, but the pay will be expensive.

and, I think you can do it like:

register_tick_function();
tick,
tick,
unregister_tick_functiono()
 [2012-04-11 15:07 UTC] laruence@php.net
-Status: Open +Status: Wont fix
 [2015-10-12 09:20 UTC] martin dot keckeis1 at gmail dot com 
I also run into this issue.

What i wanted to accomplish? Since i had some "out of memory" errors i wanted to debug some script and log a debug message then 80% of the memory is reached, that i can log some more things.

But when 80% is first time triggered, i wanted to unregister the function, since its not need anymore.
 
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