Req #77815 [NEW]: New feature request - Introduce 'using' keyword/feature similar to C#

From: piotr dot ziarek at yahoo dot co dot uk Operating system: PHP version: 7.3.4RC1 Package: PHP Language Specification Bug Type: Feature/Change Request Bug description:New feature request - Introduce 'using' keyword/feature similar to C# Description: ------------ Currently there is no way in PHP to control the scope/lifetime of a variable. In C# there is an interface called IDisposable which allows for explicit disposal by using a 'using' keyword. I'm proposing a explicit destructor to be called in PHP in a similar manner. 'using' should behave like an 'if' statement - it should not require curly brackets for a single command inside in it, multiple commands should be wrapped in curly brackets. Test script: --------------- <? using($t=new Div) //no semicolon since this should be like an 'if' echo 'inside'; echo 'outside'; // // //---class Div--------------- class Div{ function __construct(){ echo '<div>'; } function __destruct(){ echo '</div>'; } } ?> Expected result: ---------------- if 'using' was implemented, the example code above should output: "<div>inside</div>outside" Actual result: -------------- 'using' currently will display an error: PHP Parse error: syntax error, unexpected 'echo' (T_ECHO) //or depending on a semicolon(just to give you you a real failure reason) PHP Fatal error: Uncaught Error: Call to undefined function using() without 'using' it will say "<div>insideoutside</div>" - last </div> will be displayed at the very end of script probably when PHP disposes all variables. -- Edit bug report at https://bugs.php.net/bug.php?id=77815&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=77815&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=77815&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=77815&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=77815&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=77815&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=77815&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=77815&r=needscript Try newer version: https://bugs.php.net/fix.php?id=77815&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=77815&r=support Expected behavior: https://bugs.php.net/fix.php?id=77815&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=77815&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=77815&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=77815&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=77815&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=77815&r=dst IIS Stability: https://bugs.php.net/fix.php?id=77815&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=77815&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=77815&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=77815&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=77815&r=mysqlcfg