- Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
<?php
/** @var array<string, true> */
$arr = ["\t" => true];
if (isset($arr["\t"])) {
$shouldBePossiblyUndefinedArrayStringOffset = $arr[" "];
/** @psalm-trace $shouldBePossiblyUndefinedArrayStringOffset */;
}