IntelliJ IDEA auto insert space after choosing statement from suggested variants - intellij-idea

Question

I noticed that every time I made a choice in code completion suggested list I have to manually add a space after every statement, it's annoying. Want to automate this and try to find a solution in settings but nothing.
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Answer 1

It works just fine here and behaviour depends on where return is used (tested in PhpStorm 2020.1.4 on Windows 10).
1. The space will inserted automatically after return completion in functions where IDE knowns that they can return non empty values, e.g.
where return type is declared via PHPDoc or native PHP type;
based on other/already present non-empty returns in function body.
2. If a function already declare that it will return void then return; will be inserted on completion (notice ; at the end).
3. If no function return type is known in advance (e.g. you are writing first return and no return type declared) or other cases (e.g. return in include file -- a typical case is PHP config files (e.g. Laravel)) then no space will be inserted.
refs: WI-51343, WI-45793, WI-45803.
Here are examples when IDE will insert a space after return keyword completion via completion popup:
A short demo video for one of the cases: https://recordit.co/U90Sx6PPTO
function some1($a)
{
if ($a) {
return 22;
}
ret[COMPLETION]
}
function some2($a): string
{
ret[COMPLETION]
}
/**
* Some func.
*
* #param $a
* #return string
*/
function some3($a)
{
ret[COMPLETION]
}
Here IDE will insert return; (notice ; at the end):
/**
* #param $a
* #return void
*/
function some4($a)
{
ret[COMPLETION]
}
Possible workaround if you ALWAYS want to have a space after return statement: just make custom Live Template that will expand r[TAB] into return [CARET].
For example: