#41216 [NEW]: PCRE_UTF8 slows down 30 times

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 + [@xref_id@ + 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 $c=preg_match_all("/^ *(\d+) +(@([^@\\n]+)@ +)?([^ \\n]+)( +@([^@\\n]+)@ *| +[^\\n]*)?$/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