Bug #77334 [NEW]: Issue with preg_replace shorthand character in character class

From: webdev at westernseminary dot edu Operating system: Windows Server 2012 PHP version: 7.3.0 Package: *Regular Expressions Bug Type: Bug Bug description:Issue with preg_replace shorthand character in character class Description: ------------ When a shorthand character (\d) is used in a character class ([\d]) along wiht a dash and a dot, the regular expression throws an error in PHP 7.3.0 even though the regular expression is valid. The error does not occur in PHP 7.2.13. Test script: --------------- // SHORT EXAMPLE echo preg_replace('/[^\d-\.]/', '', '123abc'); // LONG EXAMPLE $value = '123abc'; $rgxs = array( '/[\d]/', '/[\d-]/', '/[\d\.]/', '/[\d-\.]/', //bug '/[\d\.-]/', '/[^\d]/', '/[^\d-]/', '/[^\d\.]/', '/[^\d-\.]/', //bug '/[^\w-\.]/', //bug '/[^0-9-\.]/', ); echo '<table border="1" cellpadding="10">'; echo '<tr>'; echo '<th>Index</th>'; echo '<th>Regular Expression</th>'; echo '<th>Result</th>'; echo '<th>Last Error</th>'; echo '</tr>'; foreach($rgxs as $i => $rgx) { echo '<tr>'; echo '<td>'.$i.'</td>'; echo '<td>'.$rgx.'</td>'; echo '<td>'.preg_replace($rgx, '', $value).'</td>'; echo '<td>'.preg_last_error().'</td>'; echo '</tr>'; } echo '</table>'; Expected result: ---------------- For the short example, the expected result would be "123". Actual result: -------------- For the short example, the actual result is NULL. -- Edit bug report at https://bugs.php.net/bug.php?id=77334&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=77334&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=77334&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=77334&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=77334&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=77334&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=77334&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=77334&r=needscript Try newer version: https://bugs.php.net/fix.php?id=77334&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=77334&r=support Expected behavior: https://bugs.php.net/fix.php?id=77334&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=77334&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=77334&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=77334&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=77334&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=77334&r=dst IIS Stability: https://bugs.php.net/fix.php?id=77334&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=77334&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=77334&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=77334&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=77334&r=mysqlcfg