- Output for 7.1.0 - 7.1.30, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
- string(20) "тест@example.com"
- Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33
- Notice: Use of undefined constant FILTER_FLAG_EMAIL_UNICODE - assumed 'FILTER_FLAG_EMAIL_UNICODE' in /in/vVCS1 on line 3 bool(false)