If some win32 php-dev has some spare time, this is bug is withering in 
our db for "ages" :)
and several people have duplicated and encountered it so far

regards
andré


-- 
· André Langhorst       · t: +49 571 3201801 ·
· [EMAIL PROTECTED]   · m: +49 173 9558736 ·
· PHP Quality Assurance · http://qa.php.net  ·


From:             [EMAIL PROTECTED]
Operating system: MS Windows 2000
PHP version:      4.0.4pl1
PHP Bug Type:     Date/time related
Bug description:  Microseconds seem to be untrue values

I wanted to measure script execution time, using microtime(). So I store a value at 
the beginning of the script, and one near the end, and subtract first from the second 
value (after converting).
And sometimes (i.e. on an irregular basis, maybe every 3rd or 4th try), the result is 
negative.
I mean, my scripts may be fast, but surely not *that* fast :-)

Here the relevant snippet:
<?php
// start marker
$mt = explode(' ', microtime() );
$benchmark1 = $mt[1] . substr($mt[0], 1);

// some code
// ...

// end marker
$mt2 = explode(' ', microtime() );
$benchmark2 = $mt2[1] . substr($mt2[0], 1);

$extime = $benchmark2 - $benchmark1;
// this alternative did the same:
// $extime = bcsub ($benchmark2, $benchmark1);
?>

I am using php4.0.4pl1 as an apache module in apache 1.3.14 r2, running on win2k sp1.

I just hope it's a bug and not the result of staying up late trying to do some 
programming ;)

cu & keep up the good work. PHP is way cool.




-- 
Edit Bug report at: http://bugs.php.net/?id=9094&edit=1



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