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<?php $interval = new DateInterval('P2D'); var_dump(property_exists($interval, 'd')); var_dump(isset($interval->d)); var_dump($interval->d);
Output for 7.0.14 - 7.0.20, 7.1.0 - 7.1.33, 7.2.6 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
bool(true) bool(true) int(2)
Output for 7.0.0 - 7.0.13
bool(false) bool(false) int(2)
preferences:
139.5 ms | 407 KiB | 5 Q