Feature request

When building sql queries, sometimes str_repeat is used to build IN sql-expressions.

$array = [1,2,3]; // our array
$in  = str_repeat('?,', count($array) - 1) . '?';
$sql = "SELECT * FROM table WHERE column IN ($in)";

Given constant arguments, str_repeat should return a ConstantString which would allow query analysis.

https://phpstan.org/r/33728aab-b9fb-4567-953e-0027dd26ee6b

I will work on it, just leaving it here so it is not forgotten