From: DPP <paul dot dovbush at gmail dot com>
Operating system: WinXPsp2
PHP version: 5.2.1
PHP Bug Type: PCRE related
Bug description: PCRE_UTF8 slows down 30 times
Description:
------------
Parsing file with 10000 lines of following format:
level + delim + [EMAIL PROTECTED]@ + delim +] tag + [delim + line_value +]
terminator
level digit
delim space
xref_id alphanum
tag alpha (english)
line_value any (except terminator)
terminator \r\n
With regexp:
$c=preg_match_all("/^\s*(\d+)\s+(@(\S+)@\s+)?(\w+)(\s+@(\S+)@\s*|.*)?$/Sm",$fp,$m,PREG_PATTERN_ORDER);
Setting PCRE_UTF8 modifier slows whole script down 30 times (from 300ms to
9000ms).
May be more accurate regexp here will be
$c=preg_match_all("/^ *(\d+) +(@([EMAIL PROTECTED])@ +)?([^ \\n]+)( +@([EMAIL
PROTECTED])@
*| +[^\\n]*)?$/m",$fp,$m,PREG_PATTERN_ORDER);
But it changes nothing.
--
Edit bug report at http://bugs.php.net/?id=41216&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=41216&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=41216&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=41216&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=41216&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=41216&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=41216&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=41216&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=41216&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=41216&r=support
Expected behavior: http://bugs.php.net/fix.php?id=41216&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=41216&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=41216&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=41216&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=41216&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=41216&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=41216&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=41216&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=41216&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=41216&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=41216&r=mysqlcfg
