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run code in 300+ PHP versions simultaneously
<?php class MyDateTime extends DateTime { public function sub(DateInterval $interval) { // Do nothing } }
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: Return type of MyDateTime::sub(DateInterval $interval) should either be compatible with DateTime::sub(DateInterval $interval): DateTime, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/euP4T on line 5
Output for 8.0.0 - 8.0.30
Output for 7.4.0 - 7.4.33
Warning: Declaration of MyDateTime::sub(DateInterval $interval) should be compatible with DateTime::sub($interval) in /in/euP4T on line 5
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Warning: Declaration of MyDateTime::sub(DateInterval $interval) should be compatible with DateTime::sub($interval) in /in/euP4T on line 8
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
Strict Standards: Declaration of MyDateTime::sub() should be compatible with DateTime::sub($interval) in /in/euP4T on line 8

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