Req #62519 [Com]: Find out about a function's call context

Edit report at https://bugs.php.net/bug.php?id=62519&edit=1 ID: 62519 Comment by: nikic@php.net Reported by: awilliams at linkme dot com dot au Summary: Find out about a function's call context Status: Open Type: Feature/Change Request Package: Unknown/Other Function Operating System: any PHP Version: Irrelevant Block user comment: N Private report: N New Comment: PHP is a dynamically typed language. It can't in the general case know what type is expected. Simple example if f1() + f2(). Here int, float and array would be viable return types. Whether the return value is used or not is known to the engine and also exposed to internal functions. But I don't think that it makes sense to expose it to userland functions. Functions shouldn't behave different based on whether the return value is used or not. Previous Comments: ------------------------------------------------------------------------ [2012-07-10 04:10:55] awilliams at linkme dot com dot au Description: ------------ I would like to be able to tell if a function was called from a context that is expecting a return value or not. Additionally what type is expected. eg('hello'); // called not expecting a return value echo eg('hello').' world'; // called expecting a string function eg($s) { if(return){ // suggested overloading of the return keyword to report the function context. return ($s); } else{ echo $s; } } Additionally gettype(return); and is_string(return); is_array(return); etc ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=62519&edit=1