Bug #66664 [NEW]: preg_match_all + PREG_PATTERN_ORDER + PCRE_INFO_JCHANGED, output wrong result

From: coolwust at gmail dot com Operating system: 3.12-1-amd64 Debian 3.12. PHP version: 5.5.9 Package: PCRE related Bug Type: Bug Bug description:preg_match_all + PREG_PATTERN_ORDER + PCRE_INFO_JCHANGED, output wrong result Description: ------------ --- From manual page: http://www.php.net/function.preg-match-all --- The code is from pcre manual, chapter 'NAMED SUBPATTERNS', line 6093: http://www.pcre.org/pcre.txt PREG_SET_ORDER: Output the same result as the manual expected. PREG_PATTERN_ORDER Output the wrong result. Please check example for details. Maybe the latest named capturing overwrite the previous result. Test script: --------------- $pattern = <<<'PATTERN' /(?xJ) (?<DN>Mon|Fri|Sun)(?:day)?| (?<DN>Tue)(?:sday)?| (?<DN>Wed)(?:nesday)?| (?<DN>Thu)(?:rsday)?| (?<DN>Sat)(?:urday)? / PATTERN; $subject = "Monday\nThursday"; $result1 = preg_match_all($pattern, $subject, $matches1, PREG_PATTERN_ORDER); $result2 = preg_match_all($pattern, $subject, $matches2, PREG_SET_ORDER); echo 'subject:'; var_dump($subject); echo 'pattern:'; var_dump($pattern); echo 'flag PREG_PATTERN_ORDER:'; var_dump($matches1); echo 'flag PREG_SET_ORDER:'; var_dump($matches2); Expected result: ---------------- subject: string 'Monday Thursday' (length=15) pattern: string '/(?xJ) (?<DN>Mon|Fri|Sun)(?:day)?| (?<DN>Tue)(?:sday)?| (?<DN>Wed)(?:nesday)?| (?<DN>Thu)(?:rsday)?| (?<DN>Sat)(?:urday)? /' (length=123) flag PREG_PATTERN_ORDER: array (size=7) 0 => array (size=2) 0 => string 'Monday' (length=6) 1 => string 'Thursday' (length=8) 'DN' => array (size=2) 0 => string 'Mon' (length=0) //Expected 1 => string 'Thu' (length=0) //Expected 1 => array (size=2) 0 => string 'Mon' (length=3) 1 => string '' (length=0) 2 => array (size=2) 0 => string '' (length=0) 1 => string '' (length=0) 3 => array (size=2) 0 => string '' (length=0) 1 => string '' (length=0) 4 => array (size=2) 0 => string '' (length=0) 1 => string 'Thu' (length=3) 5 => array (size=2) 0 => string '' (length=0) 1 => string '' (length=0) flag PREG_SET_ORDER: array (size=2) 0 => array (size=3) 0 => string 'Monday' (length=6) 'DN' => string 'Mon' (length=3) 1 => string 'Mon' (length=3) 1 => array (size=6) 0 => string 'Thursday' (length=8) 'DN' => string 'Thu' (length=3) 1 => string '' (length=0) 2 => string '' (length=0) 3 => string '' (length=0) 4 => string 'Thu' (length=3) Actual result: -------------- subject: string 'Monday Thursday' (length=15) pattern: string '/(?xJ) (?<DN>Mon|Fri|Sun)(?:day)?| (?<DN>Tue)(?:sday)?| (?<DN>Wed)(?:nesday)?| (?<DN>Thu)(?:rsday)?| (?<DN>Sat)(?:urday)? /' (length=123) flag PREG_PATTERN_ORDER: array (size=7) 0 => array (size=2) 0 => string 'Monday' (length=6) 1 => string 'Thursday' (length=8) 'DN' => array (size=2) 0 => string '' (length=0) //Wrong 1 => string '' (length=0) //Wrong 1 => array (size=2) 0 => string 'Mon' (length=3) 1 => string '' (length=0) 2 => array (size=2) 0 => string '' (length=0) 1 => string '' (length=0) 3 => array (size=2) 0 => string '' (length=0) 1 => string '' (length=0) 4 => array (size=2) 0 => string '' (length=0) 1 => string 'Thu' (length=3) 5 => array (size=2) 0 => string '' (length=0) 1 => string '' (length=0) flag PREG_SET_ORDER: array (size=2) 0 => array (size=3) 0 => string 'Monday' (length=6) 'DN' => string 'Mon' (length=3) 1 => string 'Mon' (length=3) 1 => array (size=6) 0 => string 'Thursday' (length=8) 'DN' => string 'Thu' (length=3) 1 => string '' (length=0) 2 => string '' (length=0) 3 => string '' (length=0) 4 => string 'Thu' (length=3) -- Edit bug report at https://bugs.php.net/bug.php?id=66664&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=66664&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=66664&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=66664&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=66664&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=66664&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=66664&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=66664&r=needscript Try newer version: https://bugs.php.net/fix.php?id=66664&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=66664&r=support Expected behavior: https://bugs.php.net/fix.php?id=66664&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=66664&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=66664&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=66664&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=66664&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=66664&r=dst IIS Stability: https://bugs.php.net/fix.php?id=66664&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=66664&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=66664&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=66664&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=66664&r=mysqlcfg