Bug #52426 [Opn->Bgs]: switch() does not issue PHP Notice for uninitialized variable

Edit report at http://bugs.php.net/bug.php?id=52426&edit=1 ID: 52426 Updated by: iliaa@php.net Reported by: gphemsley at gmail dot com Summary: switch() does not issue PHP Notice for uninitialized variable -Status: Open +Status: Bogus Type: Bug Package: Scripting Engine problem PHP Version: 5.2.14 Block user comment: N New Comment: Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php Unless you have "case:" statements inside the switch the condition of the switch never actually gets used, because it does not get used it means no notices are being raised. Previous Comments: ------------------------------------------------------------------------ [2010-08-18 12:17:41] brendel at krumedia dot de If you add some cases to the switch the notice it triggered. ------------------------------------------------------------------------ [2010-07-24 08:21:08] gphemsley at gmail dot com Description: ------------ If the parameter passed to switch() is an uninitialized variable, a PHP Notice documenting such is not issued. Test script: --------------- <?php error_reporting( E_ALL ); var_dump( PHP_VERSION, $mode ); switch( $mode ) { default: print '<p>There should be 2 notices of "undefined variable: mode".<br />' . "\n"; print 'One for the var_dump() and one for the switch().</p>' . "\n"; break; } highlight_file( $_SERVER['SCRIPT_FILENAME'] ); ?> Expected result: ---------------- In the above script, two notices of "Undefined variable: mode" should be issued, one for the var_dump() and one for the switch(). Actual result: -------------- In reality, only one notice is issued: the one for the var_dump(). (Taking out that call means that no notices are issued.) I've gotten confirmation that this is present in 5.2.4, 5.2.5, and 5.3.2. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/bug.php?id=52426&edit=1