PHP 4.0 Bug #9321: eregi() crashes or runs terrible slow

From: mage@diablo.hu Operating system: windows 98 / debian linux PHP version: 4.0.4pl1 PHP Bug Type: *Regular Expressions Bug description: eregi() crashes or runs terrible slow I have an own e-mail source parser script for an archive engine. It has been working for a long time without errors, but it was crashed yesterday. I have found the problem: eregi() halts with a 13k long text. This is same with PHP 4.0.3 Windows and PHP 4.0.4pl Debian Linux. I include a short script to show it: -------- <?php $cuts = array("_______________________________________________\n"); $lines = file('\work\mail.txt'); foreach ($lines as $l) { $text .= $l . "\n"; } $text = str_replace(chr(13),'',$text); echo strlen($text) . "\n\n"; foreach ($cuts as $c) { $ok = true; $cnt = 0; while ($ok && $cnt < 15) { echo $c . "\n"; $regs[2] = ''; eregi("(.*)($c)(.*)",$text,$regs); $text = $regs[1] . $regs[3]; $ok = ($regs[2] == $c) && ($c != ''); // originally it was "$ok = $regs[2]", but I was trying to find the problem so I have changed $cnt++; echo strlen($text) . "\n\n"; } } ?> ---------- This is the result with windows/php4.0.3: " 13238 _______________________________________________ 13190 _______________________________________________ <br> <b>Fatal error</b>: Maximum execution time of 30 seconds exceeded in <b>C:\Webroot\test\eregi\test.php4</b> on line <b>19</b><br> " ---- The result with PHP 4.0.4pl - Debian " 13239 _______________________________________________ 13191 _______________________________________________ 13143 _______________________________________________ <br> <b>Fatal error</b>: Maximum execution time of 180 seconds exceeded in <b>/home/mage/public_html/test/test.php4</b> on line <b>18</b><br> " ------ I think this is a bug, but that happend only with a specific text file. I should send it. -- Edit Bug report at: http://bugs.php.net/?id=9321&edit=1