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

Edit report at https://bugs.php.net/bug.php?id=77815&edit=1 ID: 77815 Updated by: requinix@php.net Reported by: piotr dot ziarek at yahoo dot co dot uk Summary: New feature request - Introduce 'using' keyword/feature similar to C# -Status: Open +Status: Suspended Type: Feature/Change Request -Package: PHP Language Specification +Package: Scripting Engine problem PHP Version: 7.3.4RC1 Block user comment: N Private report: N New Comment: For language changes like this, please use the RFC process. https://wiki.php.net/rfc/howto Previous Comments: ------------------------------------------------------------------------ [2019-03-28 14:11:48] piotr dot ziarek at yahoo dot co dot uk 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 this bug report at https://bugs.php.net/bug.php?id=77815&edit=1