Req #71896 [NEW]: break to end of block if error

From: p dot peyremorte at free dot fr Operating system: all PHP version: Irrelevant Package: PHP Language Specification Bug Type: Feature/Change Request Bug description:break to end of block if error Description: ------------ Hi, I would like to propose to add a new instruction, like : break_if_empty(expression, command); Description: If "expression" is empty(undef or false), then execute "command" and skip until end of current block = skip until next "}" at same level. Explanation and example: Each time we have some linear treatment, i.e. on response to POST request, errors can occurs that must stop the linear treatment and return an error message, but not stop all the script. This produce many nested or successive checks of an "error flag" Exemple : if (isset($_POST[...]) { if (empty($_POST[...]) $error = '... must not be empty'; else { init something; if (!mysql....) $error = 'Cannot reach database'; else { .....; } } if (empty($error)) { if (someting wrong) $error = 'wrong params'; } if (empty($error)) { next steps... } etc ... } Such structure can be simplified by using function and "exit" or "return" but it requires to move the full bloc, and only it, in a function. All external variable must be passed as parameter or declared as global, inducing frequent miss or bug. It can also be simplifyed using "goto", but not so much and most of us really dislike it : if (isset($_POST[...]) { if (empty($_POST[...]) { $error = '... must not be empty'; goto EndBloc; } init something if (!mysql....) { $error = 'Cannot reach database'; goto EndBloc; } .....; if (empty($error)) goto EndBloc; next steps... EndBloc: } With break_if_empty(), my first exemple would resume to : if (isset($_POST[...]) { break_if_empty($_POST[...], $error = '... must not be empty'); init something; break_if_empty(mysql.... , $error = 'Cannot reach database'); .....; break_if_empty(someting wrong, $error = 'wrong params'); next steps... etc ... } This is a lot easier to read, to understand and to maintain than first exemple. :-) -- Edit bug report at https://bugs.php.net/bug.php?id=71896&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=71896&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=71896&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=71896&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=71896&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=71896&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=71896&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=71896&r=needscript Try newer version: https://bugs.php.net/fix.php?id=71896&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=71896&r=support Expected behavior: https://bugs.php.net/fix.php?id=71896&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=71896&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=71896&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=71896&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=71896&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=71896&r=dst IIS Stability: https://bugs.php.net/fix.php?id=71896&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=71896&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=71896&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=71896&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=71896&r=mysqlcfg