From: katzenmayer at erfnet dot de
Operating system: Debian Sarge
PHP version: 5.2.0
PHP Bug Type: Performance problem
Bug description: date() is extremely slow
Description:
------------
While switching a calendar script from PHP4 to PHP5 I noticed the script
takes multiple times as long to complete in PHP5 than it did in PHP4.
The problem seems to be date() and mktime() functions.
I did not notice any other PHP5 related performance issues. Scripts that
do not use date() or mktime() run very fast.
Reproduce code:
---------------
test.php:
<?
for ($i=0;$i<100000;$i++)
{
date('d');
}
?>
Now check this script with both PHP4 and PHP5:
time php4 test.php
time php5 test.php
Expected result:
----------------
The script should take about the same time in both PHP4 and PHP5
Actual result:
--------------
time php4 test.php
real 0m0.286s
user 0m0.034s
sys 0m0.252s
time php5 test.php
real 0m25.252s
user 0m18.579s
sys 0m5.615s
--
Edit bug report at http://bugs.php.net/?id=39968&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=39968&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=39968&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=39968&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=39968&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=39968&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=39968&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=39968&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=39968&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=39968&r=support
Expected behavior: http://bugs.php.net/fix.php?id=39968&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=39968&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=39968&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=39968&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=39968&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=39968&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=39968&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=39968&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=39968&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=39968&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=39968&r=mysqlcfg
