(PHP 5 >= 5.6.0, PHP 7, PHP 8)
phpdbg_exec — Attempts to set the execution context
$context): string|bool
This function is currently not documented; only its argument list is available.
context
   If the execution context was set previously it is returned.
   If the execution context was not set previously true is returned.
   If the request to set the context fails, false is returned, and an
   E_WARNING raised.