#32068 [NEW]: Parse not executed while using the perl comment(#) with patterns

From: simon at ruderich dot com Operating system: Mac OS X 10.3.8 PHP version: 4.3.10 PHP Bug Type: Output Control Bug description: Parse not executed while using the perl comment(#) with patterns Description: ------------ I wanted to replace a string using the 'preg_replace'- function. I tried more patterns, so I commented out the old patterns. But then it showed me not the replace string. This must be a problem with the perl comment (#) because if I use /* */ to comment out the old pattern the script works. Reproduce code: --------------- <?php error_reporting(E_ALL); $string = " <a> asdf </a> <a> <a> test </a> <a> test </a> <a> test </a> </a> <a>asdf</a> <a>asdf</a> "; #$pattern = '#<a>( ( ([^<>])|(?R) )*? )</a>#isx'; #$pattern = '#<a>( ( (?R)|() )*? )</a>#isx'; #$pattern = '#\( (( (?>[^()]+) | (?R) )*) \)#isUx'; $pattern = '#<a>( (.)*? )</a>#isxU'; $replace = '[a]$1[/a]'; echo '<pre>'."\n"; echo htmlspecialchars($string); echo "\n\n"; echo htmlspecialchars(preg_replace($pattern, $replace, $string)); echo '</pre>'."\n"; ?> Expected result: ---------------- <a> asdf </a> <a> <a> test </a> <a> test </a> <a> test </a> </a> <a>asdf</a> <a>asdf</ a> [a] asdf </a> <a> <a> test </a> <a> test </a> <a> test </a> </a> <a>asdf</a> <a>asdf[/ a] Actual result: -------------- [^()]+) | (?R) )*) \)#isUx'; $pattern = '#( (.)*? )#isxU'; $replace = '[a]$1[/a]'; echo ' '."\n"; echo htmlspecialchars($string); echo "\n\n"; echo htmlspecialchars(preg_replace($pattern, $replace, $string)); echo ' '."\n"; ?> -- Edit bug report at http://bugs.php.net/?id=32068&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=32068&r=trysnapshot4 Try a CVS snapshot (php5.0): http://bugs.php.net/fix.php?id=32068&r=trysnapshot50 Try a CVS snapshot (php5.1): http://bugs.php.net/fix.php?id=32068&r=trysnapshot51 Fixed in CVS: http://bugs.php.net/fix.php?id=32068&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=32068&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=32068&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=32068&r=needscript Try newer version: http://bugs.php.net/fix.php?id=32068&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=32068&r=support Expected behavior: http://bugs.php.net/fix.php?id=32068&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=32068&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=32068&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=32068&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=32068&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=32068&r=dst IIS Stability: http://bugs.php.net/fix.php?id=32068&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=32068&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=32068&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=32068&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=32068&r=mysqlcfg