Proposal: &$result_code=null parameter in shell_exec()

Hi internals, This is a proposal to add an optional parameter &$result_code = null to the shell_exec() function. For clarity, the current signature is shell_exec(string $command): string|false|null The proposed signature is shell_exec(string $command, int &$result_code = null): string|false|null If present, the result_code parameter is set to the exit code of the command, as it is in exec() and system(). This feature request was also posted by another user on https://bugs.php.net/bug.php?id=81493 I have a draft pull request at https://github.com/php/php-src/pull/7663 Thoughts? Thanks, Luca