Bug report

It seems that phpstan has invalid stubs for SimpleXMLElement as the return type of xpath is assumed to be array instead of array|null|false.

ref: https://www.php.net/manual/en/simplexmlelement.xpath.php
ref: https://psalm.dev/r/a95dc1b740

Code snippet that reproduces the problem

https://phpstan.org/r/74ce4bd9-a23d-4c5a-a027-8fd97a41fa3f

Expected output

No issues

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