#34507 [Opn->Csd]: Divide by zero error messages during parsing

ID: 34507 Updated by: sniper@php.net Reported By: levi at alliancesoftware dot com dot au -Status: Open +Status: Closed Bug Type: Scripting Engine problem PHP Version: 5.0.5 New Comment: Seems to be fixed in PHP 5.1-dev. Previous Comments: ------------------------------------------------------------------------ [2005-09-15 05:28:00] levi at alliancesoftware dot com dot au Description: ------------ If you have a divide by zero constant, the initial syntax check parsing catches it as an error even if the code is never executed. A consequence of this is that error_reporting() and set_ini('display_errors'..) are ignored since the error is triggeed before the php code is exectued. This in itself is not neccessarily a bug since you shouldn't have a constant divide by zero, but the error report doesn't tell you the file it came from (says unknown at line 0): this can be very frustrating if you have a large number of include() files). Setting display_error=0 in the .ini file is also ignored if error_reporting is on Reproduce code: --------------- #!/usr/local/bin/php <? if (0) $x = 5 / 0; ?> Expected result: ---------------- File runs or, if (error_reporting | E_WARNING) && display_errors PHP Warning: Division by zero in test.php on line 3 Actual result: -------------- if (error_reporting | E_WARNING) and display_errors==0 [stderr:] PHP Warning: Division by zero in Unknown on line 0 if (error_reporting | E_WARNING) and display_errors==1 [stderr:] PHP Warning: Division by zero in Unknown on line 0 [stdout:] <br /> <b>Warning</b>: Division by zero in <b>Unknown</b> on line <b>0</b><br /> [ yes, the error is reported twice ] if (error_reporting == 0) [ No output ] ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=34507&edit=1