note 125403 added to function.getenv

I did a benchmark about env. constants : 0.00067687034606934 ms getenv : 0.056761026382446 ms (less is better) https://github.com/eftec/php-benchmarks#define--const--env And, in Windows at leat, reading the env value is considerably slow (in comparison with a constant), so PHP doesn't cache the information and asks to the OS the env value per call. So, if you are calling once per request, then there is not a problem. However, if you are calling it many times per request, then it could affects the performance. ---- Server IP: 45.112.84.4 Probable Submitter: 177.234.144.170 (proxied: 190.46.238.9) ---- Manual Page -- http://php.net/manual/en/function.getenv.php Edit -- https://master.php.net/note/edit/125403 Del: integrated -- https://master.php.net/note/delete/125403/integrated Del: useless -- https://master.php.net/note/delete/125403/useless Del: bad code -- https://master.php.net/note/delete/125403/bad+code Del: spam -- https://master.php.net/note/delete/125403/spam Del: non-english -- https://master.php.net/note/delete/125403/non-english Del: in docs -- https://master.php.net/note/delete/125403/in+docs Del: other reasons-- https://master.php.net/note/delete/125403 Reject -- https://master.php.net/note/reject/125403 Search -- https://master.php.net/manage/user-notes.php