Bug #70633 [NEW]: Inconsistent results when matching character groups with codepoint ranges

From: eggyal at gmail dot com Operating system: OS X 10.11 El Capitan PHP version: 5.5.30 Package: PCRE related Bug Type: Bug Bug description:Inconsistent results when matching character groups with codepoint ranges Description: ------------ I've noticed that, after using a lookbehind assertion, subsequent matches (even from different script invocations—so perhaps this is an OS issue?) can produce erroneous results. It appears to occur when using ranges of unicode codepoints within a character group, though this by no means may be the only circumstances. (This version of PHP is exactly as shipped by Apple with OS X). $ php -i phpinfo() PHP Version => 5.5.27 System => Darwin XXXXXXXXXXXXXXXXXXXX 15.0.0 Darwin Kernel Version 15.0.0: Wed Aug 26 16:57:32 PDT 2015; root:xnu-3247.1.106~1/RELEASE_X86_64 x86_64 Build Date => Aug 22 2015 18:16:09 Configure Command => '/Library/Caches/com.apple.xbs/Binaries/apache_mod_php/apache_mod_php-99~96/Objects/php/configure' '--prefix=/usr' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--disable-dependency-tracking' '--sysconfdir=/private/etc' '--with-libdir=lib' '--enable-cli' '--with-iconv=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.Internal.sdk/usr' '--with-config-file-path=/etc' '--with-config-file-scan-dir=/Library/Server/Web/Config/php' '--with-libxml-dir=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.Internal.sdk/usr' '--with-openssl=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.Internal.sdk/usr/local Server API => Command Line Interface Virtual Directory Support => disabled Configuration File (php.ini) Path => /etc Loaded Configuration File => (none) Scan this dir for additional .ini files => /Library/Server/Web/Config/php Additional .ini files parsed => (none) PHP API => 20121113 PHP Extension => 20121212 Zend Extension => 220121212 Zend Extension Build => API220121212,NTS PHP Extension Build => API20121212,NTS Debug Build => no Thread Safety => disabled Zend Signal Handling => disabled Zend Memory Manager => enabled Zend Multibyte Support => provided by mbstring IPv6 Support => enabled DTrace Support => disabled Registered PHP Streams => https, ftps, compress.zlib, compress.bzip2, php, file, glob, data, http, ftp, phar, zip Registered Stream Socket Transports => tcp, udp, unix, udg, ssl, sslv3, sslv2, tls Registered Stream Filters => zlib.*, bzip2.*, convert.iconv.*, string.rot13, string.toupper, string.tolower, string.strip_tags, convert.*, consumed, dechunk This program makes use of the Zend Scripting Language Engine: Zend Engine v2.5.0, Copyright (c) 1998-2015 Zend Technologies _______________________________________________________________________ Configuration bcmath BCMath support => enabled Directive => Local Value => Master Value bcmath.scale => 0 => 0 bz2 BZip2 Support => Enabled Stream Wrapper support => compress.bzip2:// Stream Filter support => bzip2.decompress, bzip2.compress BZip2 Version => 1.0.6, 6-Sept-2010 calendar Calendar support => enabled Core PHP Version => 5.5.27 Directive => Local Value => Master Value allow_url_fopen => On => On allow_url_include => Off => Off always_populate_raw_post_data => Off => Off arg_separator.input => & => & arg_separator.output => & => & asp_tags => Off => Off auto_append_file => no value => no value auto_globals_jit => On => On auto_prepend_file => no value => no value 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=> no value ctype ctype functions => enabled curl cURL support => enabled cURL Information => 7.43.0 Age => 3 Features AsynchDNS => Yes CharConv => No Debug => No GSS-Negotiate => No IDN => No IPv6 => Yes krb4 => No Largefile => Yes libz => Yes NTLM => Yes NTLMWB => Yes SPNEGO => Yes SSL => Yes SSPI => No TLS-SRP => No Protocols => dict, file, ftp, ftps, gopher, http, https, imap, imaps, ldap, ldaps, pop3, pop3s, rtsp, smb, smbs, smtp, smtps, telnet, tftp Host => x86_64-apple-darwin15.0 SSL Version => SecureTransport ZLib Version => 1.2.5 date date/time support => enabled "Olson" Timezone Database Version => 2015.5 Timezone Database => internal Default timezone => UTC Directive => Local Value => Master Value date.default_latitude => 31.7667 => 31.7667 date.default_longitude => 35.2333 => 35.2333 date.sunrise_zenith => 90.583333 => 90.583333 date.sunset_zenith => 90.583333 => 90.583333 date.timezone => no value => no value dba DBA support => enabled Supported handlers => ndbm cdb 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Phar fully realized by Gregory Beaver and Marcus Boerger. Portions of tar implementation Copyright (c) 2003-2009 Tim Kientzle. Directive => Local Value => Master Value phar.cache_list => no value => no value phar.readonly => On => On phar.require_hash => On => On posix Revision => $Id: 5d20de77687b7d961b15450873fa23b9e64a136a $ readline Readline Support => enabled Readline library => EditLine wrapper Directive => Local Value => Master Value cli.pager => no value => no value cli.prompt => \b \> => \b \> Reflection Reflection => enabled Version => $Id: dc76d2fe0f3e9c327c1d4ca617d94e26c7fae98d $ session Session Support => enabled Registered save handlers => files user Registered serializer handlers => php_serialize php php_binary wddx Directive => Local Value => Master Value session.auto_start => Off => Off session.cache_expire => 180 => 180 session.cache_limiter => nocache => nocache session.cookie_domain => no value => no value session.cookie_httponly => Off => Off session.cookie_lifetime => 0 => 0 session.cookie_path => / => / session.cookie_secure => Off => Off session.entropy_file => /dev/urandom => /dev/urandom session.entropy_length => 32 => 32 session.gc_divisor => 100 => 100 session.gc_maxlifetime => 1440 => 1440 session.gc_probability => 1 => 1 session.hash_bits_per_character => 4 => 4 session.hash_function => 0 => 0 session.name => PHPSESSID => PHPSESSID session.referer_check => no value => no value session.save_handler => files => files session.save_path => no value => no value session.serialize_handler => php => php session.upload_progress.cleanup => On => On session.upload_progress.enabled => On => On session.upload_progress.freq => 1% => 1% session.upload_progress.min_freq => 1 => 1 session.upload_progress.name => PHP_SESSION_UPLOAD_PROGRESS => PHP_SESSION_UPLOAD_PROGRESS session.upload_progress.prefix => upload_progress_ => upload_progress_ session.use_cookies => On => On session.use_only_cookies => On => On session.use_strict_mode => Off => Off session.use_trans_sid => 0 => 0 shmop shmop support => enabled SimpleXML Simplexml support => enabled Revision => $Id: 6b8e23a01a85046737ef7d31346da5164505c179 $ Schema support => enabled snmp NET-SNMP Support => enabled NET-SNMP Version => 5.6 PHP SNMP Version => 0.1 soap Soap Client => enabled Soap Server => enabled Directive => Local Value => Master Value soap.wsdl_cache => 1 => 1 soap.wsdl_cache_dir => /tmp => /tmp soap.wsdl_cache_enabled => 1 => 1 soap.wsdl_cache_limit => 5 => 5 soap.wsdl_cache_ttl => 86400 => 86400 sockets Sockets Support => enabled SPL SPL support => enabled Interfaces => Countable, OuterIterator, RecursiveIterator, SeekableIterator, SplObserver, SplSubject Classes => AppendIterator, ArrayIterator, ArrayObject, BadFunctionCallException, BadMethodCallException, CachingIterator, CallbackFilterIterator, DirectoryIterator, DomainException, EmptyIterator, FilesystemIterator, FilterIterator, GlobIterator, InfiniteIterator, InvalidArgumentException, IteratorIterator, LengthException, LimitIterator, LogicException, MultipleIterator, NoRewindIterator, OutOfBoundsException, OutOfRangeException, OverflowException, ParentIterator, RangeException, RecursiveArrayIterator, RecursiveCachingIterator, RecursiveCallbackFilterIterator, RecursiveDirectoryIterator, RecursiveFilterIterator, RecursiveIteratorIterator, RecursiveRegexIterator, RecursiveTreeIterator, RegexIterator, RuntimeException, SplDoublyLinkedList, SplFileInfo, SplFileObject, SplFixedArray, SplHeap, SplMinHeap, SplMaxHeap, SplObjectStorage, SplPriorityQueue, SplQueue, SplStack, SplTempFileObject, UnderflowException, UnexpectedValueException sqlite3 SQLite3 support => enabled SQLite3 module version => 0.7-dev SQLite Library => 3.8.10.2 Directive => Local Value => Master Value sqlite3.extension_dir => no value => no value standard Dynamic Library Support => enabled Path to sendmail => /usr/sbin/sendmail -t -i Directive => Local Value => Master Value assert.active => 1 => 1 assert.bail => 0 => 0 assert.callback => no value => no value assert.quiet_eval => 0 => 0 assert.warning => 1 => 1 auto_detect_line_endings => 0 => 0 default_socket_timeout => 60 => 60 from => no value => no value url_rewriter.tags => a=href,area=href,frame=src,form=,fieldset= => a=href,area=href,frame=src,form=,fieldset= user_agent => no value => no value sysvmsg sysvmsg support => enabled Revision => $Id: 1e821e8a0cbb868efec453560ba303e04f3a1db2 $ tidy Tidy support => enabled libTidy Release => 31 October 2006 - Apple Inc. build 15.17 Extension Version => 2.0 ($Id: e066a98a414c7f79f89f697c19c4336c61bc617b $) Directive => Local Value => Master Value tidy.clean_output => 0 => 0 tidy.default_config => no value => no value tokenizer Tokenizer Support => enabled wddx WDDX Support => enabled WDDX Session Serializer => enabled xml XML Support => active XML Namespace Support => active libxml2 Version => 2.9.2 xmlreader XMLReader => enabled xmlrpc core library version => xmlrpc-epi v. 0.51 php extension version => 0.51 author => Dan Libby homepage => http://xmlrpc-epi.sourceforge.net open sourced by => Epinions.com xmlwriter XMLWriter => enabled xsl XSL => enabled libxslt Version => 1.1.28 libxslt compiled against libxml Version => 2.9.2 EXSLT => enabled libexslt Version => 1.1.28 zip Zip => enabled Extension Version => $Id: c268059b54296d6ea21e8b1178f40a28a88f0024 $ Zip version => 1.11.0 Libzip version => 0.10.1 zlib ZLib Support => enabled Stream Wrapper => compress.zlib:// Stream Filter => zlib.inflate, zlib.deflate Compiled Version => 1.2.5 Linked Version => 1.2.5 Directive => Local Value => Master Value zlib.output_compression => Off => Off zlib.output_compression_level => -1 => -1 zlib.output_handler => no value => no value Additional Modules Module Name sysvsem sysvshm Environment Variable => Value TERM_PROGRAM => Apple_Terminal TERM => xterm-256color SHELL => /bin/bash TMPDIR => /var/folders/qn/866chb051qs0k35l5j2lx06h000101/T/ Apple_PubSub_Socket_Render => /private/tmp/com.apple.launchd.vXpgXfQBW2/Render TERM_PROGRAM_VERSION => 361 TERM_SESSION_ID => FFC47A1B-9F57-415F-8E2D-FDFED7F30CAC USER => XXXXXX SSH_AUTH_SOCK => /private/tmp/com.apple.launchd.bF0gaYl5S0/Listeners __CF_USER_TEXT_ENCODING => 0x401:0x0:0x0 PATH => /usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin PWD => XXXXXXXXXXXX LANG => en_GB.UTF-8 XPC_FLAGS => 0x0 XPC_SERVICE_NAME => 0 HOME => XXXXXXXXXXXX SHLVL => 1 LOGNAME => XXXXXX _ => /usr/bin/php PHP Variables Variable => Value _SERVER["TERM_PROGRAM"] => Apple_Terminal _SERVER["TERM"] => xterm-256color _SERVER["SHELL"] => /bin/bash _SERVER["TMPDIR"] => /var/folders/qn/866chb051qs0k35l5j2lx06h000101/T/ _SERVER["Apple_PubSub_Socket_Render"] => /private/tmp/com.apple.launchd.vXpgXfQBW2/Render _SERVER["TERM_PROGRAM_VERSION"] => 361 _SERVER["TERM_SESSION_ID"] => FFC47A1B-9F57-415F-8E2D-FDFED7F30CAC _SERVER["USER"] => XXXXXXX _SERVER["SSH_AUTH_SOCK"] => /private/tmp/com.apple.launchd.bF0gaYl5S0/Listeners _SERVER["__CF_USER_TEXT_ENCODING"] => 0x401:0x0:0x0 _SERVER["PATH"] => /usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin _SERVER["PWD"] => XXXXXXXXXXXX _SERVER["LANG"] => en_GB.UTF-8 _SERVER["XPC_FLAGS"] => 0x0 _SERVER["XPC_SERVICE_NAME"] => 0 _SERVER["HOME"] => XXXXXXXXXXXX _SERVER["SHLVL"] => 1 _SERVER["LOGNAME"] => XXXXX _SERVER["_"] => /usr/bin/php _SERVER["PHP_SELF"] => _SERVER["SCRIPT_NAME"] => _SERVER["SCRIPT_FILENAME"] => _SERVER["PATH_TRANSLATED"] => _SERVER["DOCUMENT_ROOT"] => _SERVER["REQUEST_TIME_FLOAT"] => 1443951657.9064 _SERVER["REQUEST_TIME"] => 1443951657 _SERVER["argv"] => Array ( ) _SERVER["argc"] => 0 _ENV["TERM_PROGRAM"] => Apple_Terminal _ENV["TERM"] => xterm-256color _ENV["SHELL"] => /bin/bash _ENV["TMPDIR"] => /var/folders/qn/866chb051qs0k35l5j2lx06h000101/T/ _ENV["Apple_PubSub_Socket_Render"] => /private/tmp/com.apple.launchd.vXpgXfQBW2/Render _ENV["TERM_PROGRAM_VERSION"] => 361 _ENV["TERM_SESSION_ID"] => FFC47A1B-9F57-415F-8E2D-FDFED7F30CAC _ENV["USER"] => XXXXX _ENV["SSH_AUTH_SOCK"] => /private/tmp/com.apple.launchd.bF0gaYl5S0/Listeners _ENV["__CF_USER_TEXT_ENCODING"] => 0x401:0x0:0x0 _ENV["PATH"] => /usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin _ENV["PWD"] => XXXXXXXXXXXX _ENV["LANG"] => en_GB.UTF-8 _ENV["XPC_FLAGS"] => 0x0 _ENV["XPC_SERVICE_NAME"] => 0 _ENV["HOME"] => XXXXXXXXXXXX _ENV["SHLVL"] => 1 _ENV["LOGNAME"] => XXXXX _ENV["_"] => /usr/bin/php PHP License This program is free software; you can redistribute it and/or modify it under the terms of the PHP License as published by the PHP Group and included in the distribution in the file: LICENSE This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. If you did not receive a copy of the PHP license, or have any questions about PHP licensing, please contact license@php.net. Test script: --------------- <?php echo preg_match('/[\\x57–\\x59](?<!X)/u', 'X'), PHP_EOL, preg_match('/[\\x57–\\x59]/u' , 'X'), PHP_EOL, preg_match('/[\\x58]/u' , 'X'), PHP_EOL, preg_match('/[\\x57-\\x59]/u' , 'X'), PHP_EOL, PHP_EOL; Expected result: ---------------- 0 1 1 1 Actual result: -------------- 0 0 1 1 -- Edit bug report at https://bugs.php.net/bug.php?id=70633&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=70633&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=70633&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=70633&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=70633&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=70633&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=70633&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=70633&r=needscript Try newer version: https://bugs.php.net/fix.php?id=70633&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=70633&r=support Expected behavior: https://bugs.php.net/fix.php?id=70633&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=70633&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=70633&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=70633&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=70633&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=70633&r=dst IIS Stability: https://bugs.php.net/fix.php?id=70633&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=70633&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=70633&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=70633&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=70633&r=mysqlcfg