refactor: use more strict result check on preg_match_all() result

[samsonasik]

Description

Continue of PR:

• refactor: enable instanceof and strictBooleans rector set #9339

this ensure preg_match_all() which with falsy check ensure got exact equal result, wich compare to >=1 or <1 which can be false or 0.

Checklist:

• Securely signed commits
• Component(s) with PHPDoc blocks, only if necessary or adds value
• Unit testing, with >80% coverage
• User guide updated
• Conforms to style guide

[samsonasik]

Ready to merge 👍

[neznaika0]

Good. Why not > 0 ?

[samsonasik]

that's to make consistent with negation, if 0 or false, it uses < 1, so >=1 is chosen for found.

[samsonasik]

Thank you @michalsn@neznaika0 for the review, let's merge 👍