3v4l.org

run code in 300+ PHP versions simultaneously
<?php $object = new ArrayObject([], ArrayObject::ARRAY_AS_PROPS); $object['a'] = 'test'; var_dump($object['a'] == $object->a); //bool(true) $object->month = 'january'; echo $object['month']; // january $object['day'] = 'saturday'; echo $object->day; // saturday
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.17 - 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) januarysaturday

preferences:
138.13 ms | 408 KiB | 5 Q