#33224 [NEW]: require_once includes the same file again even if path/filename is identical

From: ypae at hotmail dot com Operating system: Windows 2003 Server PHP version: 5.0.4 PHP Bug Type: Unknown/Other Function Bug description: require_once includes the same file again even if path/filename is identical Description: ------------ When I created a lib.inc.php that has a few functions defined (e.g. getmicrocode(), myfunction()) and try to include it on several files with require_once, it somehow included more than once even though the end result of 'path/filename' is identical. My understanding of require_once limitation on Windows (or non-POSIX) platform was that if you have mixed case with the same file name, it will be included again. Another words, as long as you have identical "path/filename" as part of require_once statement, it should include only once. As a result, since you cannot redeclare the same function within the page, you get: Fatal error: Cannot redeclare "functionname()" (previously declared in... Reproduce code: --------------- For example, On lib.inc.php: =============== myfunction1() { echo "hello!";} myfunction2() { echo "hello again!";} On index.php ============ $_my_absolute_path = 'c:/inetpub/wwwroot/'; require_once($_my_absolute_path.'lib.inc.php'); require_once($_my_absolute_path.'template.inc.php'); on template.inc.php =================== $_my_absolute_path = 'c:/inetpub/wwwroot/'; require_once($_my_absolute_path.'lib.inc.php'); // Just in case someone didn't call this previously The realistic code is quite complex: A require_once B and C B require_once C and *D* C require_once *D* and *D* causes redeclare issue when I load A. Expected result: ---------------- the second attempt to include lib.inc.php by using require_once should be ignored because it was already loaded. The same code running on Linux works perfectly and it used to be fine on PHP 4.3.10 But right after I rebuild the server with PHP 5.0.4, I got the following error: Fatal error: Cannot redeclare myfunction1() (previously declared in... Actual result: -------------- the second attempt to include lib.inc.php by using require_once WAS performed and it causes error. -- Edit bug report at http://bugs.php.net/?id=33224&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=33224&r=trysnapshot4 Try a CVS snapshot (php5.0): http://bugs.php.net/fix.php?id=33224&r=trysnapshot50 Try a CVS snapshot (php5.1): http://bugs.php.net/fix.php?id=33224&r=trysnapshot51 Fixed in CVS: http://bugs.php.net/fix.php?id=33224&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=33224&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=33224&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=33224&r=needscript Try newer version: http://bugs.php.net/fix.php?id=33224&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=33224&r=support Expected behavior: http://bugs.php.net/fix.php?id=33224&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=33224&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=33224&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=33224&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=33224&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=33224&r=dst IIS Stability: http://bugs.php.net/fix.php?id=33224&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=33224&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=33224&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=33224&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=33224&r=mysqlcfg