Bug #68810 [NEW]: i guess i have found some problem with regular expressions

From: andrecamargotii at gmail dot com Operating system: Arch linux PHP version: 5.6.4 Package: Scripting Engine problem Bug Type: Bug Bug description:i guess i have found some problem with regular expressions Description: ------------ sorry for the english i wrote this script $lines = file( $this->file, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES ); foreach ( $lines as $line ) { $numline = $numline+1; if( preg_match( '/new\s?[a-z0-9]+\s?/i', $line)) { echo "ok $numline";} } } and $this-file refers to an file where i wrote this: new CR_a123) the script print in the screen ok followed by number of the line (wrong) if i change the script to this $lines = file( $this->file, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES ); foreach ( $lines as $line ) { $numline = $numline+1; if( preg_match( '/new\s?[a-z0-9]+\s?\)/i', $line)) { echo "ok $numline";} } } the script don't print anything (right) thanks for the help the first script was worng because the expression have an underscore, and in script i especified that can be only numbers and letters. the second script is correct because the script cannot output ok. i change the second script to: $lines = file( $this->file, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES ); foreach ( $lines as $line ) { $numline = $numline+1; if( preg_match( '/new\s?[a-z0-9_]+\s?\)/i', $line)) { echo "ok $numline";} } } the third script prints ok (right) now i have put underscore in the regular expression, so now the script can print ok. -- Edit bug report at https://bugs.php.net/bug.php?id=68810&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=68810&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=68810&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=68810&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=68810&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=68810&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=68810&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=68810&r=needscript Try newer version: https://bugs.php.net/fix.php?id=68810&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=68810&r=support Expected behavior: https://bugs.php.net/fix.php?id=68810&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=68810&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=68810&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=68810&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=68810&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=68810&r=dst IIS Stability: https://bugs.php.net/fix.php?id=68810&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=68810&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=68810&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=68810&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=68810&r=mysqlcfg