Add tests for strlen() with invalid argument types

[distvan]

This PR adds missing Zend tests for strlen() when called with invalid
argument types that are rejected by the engine before the function
implementation is reached.

Covered cases:

• resource argument
• object without __toString()
• enum case (PHP 8.1+)

All tests assert the user-visible error message and are placed under
Zend/tests/, consistent with existing strlen invalid-type coverage
(e.g. strlen_deprecation_to_exception.phpt).

[ndossche]

We don't add tests for functions with standard (ZPP) argument parsing.
We also don't support running the test suite on older PHP versions so we don't add PHP version checks in SKIPIF conditions.

[distvan]

Thanks for the clarification.
That makes sense — since strlen() uses standard ZPP argument parsing, these cases are already covered at the engine level and don’t need function-specific tests.
I’ll close this PR accordingly.

[lyabrahymabrahym683-ops]

بتتفعوع كم في الأحد، 28 ديسمبر، 2025، 7:46 م István Döbrentei ***@***.***> كتب:

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*distvan* left a comment (php/php-src#20795) <#20795 (comment)> Thanks for the clarification. That makes sense — since strlen() uses standard ZPP argument parsing, these cases are already covered at the engine level and don’t need function-specific tests. I’ll close this PR accordingly. — Reply to this email directly, view it on GitHub <#20795 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/B3CRPZO2DNWX4ELXP5LOQNT4EAJN7AVCNFSM6AAAAACQFWSJBWVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTMOJUHEYTKNJSGY> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>