#25042 [NEW]: pattern emtpy and replacement array

From: michiel at tincan dot co dot uk Operating system: Linux PHP version: 4.3.2 PHP Bug Type: PCRE related Bug description: pattern emtpy and replacement array Description: ------------ When upgrading to 4.3.2 this started to happen: whenever I use $string = preg_replace("/\[$pattern\]/",$replacement,$string) and the $pattern is empty or does not exist, but the replacement is an array, my string is made empty. '. /configure' '--prefix= /usr /local' '--with-apxs= /usr /local /apache-1.3.27 /bin /apxs' '--with-config-file-path= /etc' '--with-mysql= /usr' '--with-ldap' '--enable-sysvshm=yes' '--enable-sysvsem=yes' '--with-gd= /usr' '--with-gettext' '--with-xml' '--with-imap' '--enable-sockets' '--enable-ftp' '--with-regex=system' '--enable-track-vars=yes' '--enable-force-cgi-redirect=yes' '--enable-memory-limit=yes' '--enable-debug=no' Register Globals is "on" Reproduce code: --------------- $data = array( "field1" => "somevalue", "field2" => array("hmm","whassup"), ); $html = '<b>[field1]</b> ,<h1>[field3]</h1>'; while (list($field,$fielddata) = each ($data)) { $html = preg_replace("/\[$field\]/",$fielddata,$html); } print $html; # will print nothing. however if you comment out the line "field2" etc above, it will print something Expected result: ---------------- output should be : <b>somevalue</b> , <h1>[field3]</h1> Actual result: -------------- no output, the string $html is empty -- Edit bug report at http://bugs.php.net/?id=25042&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=25042&r=trysnapshot4 Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=25042&r=trysnapshot5 Fixed in CVS: http://bugs.php.net/fix.php?id=25042&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=25042&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=25042&r=needtrace Try newer version: http://bugs.php.net/fix.php?id=25042&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=25042&r=support Expected behavior: http://bugs.php.net/fix.php?id=25042&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=25042&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=25042&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=25042&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=25042&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=25042&r=dst IIS Stability: http://bugs.php.net/fix.php?id=25042&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=25042&r=gnused