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- EnumsInphp8.1? ?? ? ? ???? ???? ?? ??? ? ?? ???? ????? ?? ??? ?????. 1. ?? ??? ? (? : ??? ?? ??) ?? ??? ??? ???? ?? ?? ??? ??? ?????. 2. ??? ?? ?? ???? ?? ????? ?? ??? ??? ????. 3. Cases ()? ???? ?? ??? ???? tryfrom ()? ?? ?? ?? ????? ???? ?????. 4. ??????/API? ?? ??? ? ?? ?? ?? ?????? ???? ??? ?? ?????? ?????. 5. ?? ? ???? ?? ? ? ???? ?? ???? ?? ???? ?? ????. Constant Simulation ?? ??? ?? ??? ???? PHP8.1 ??? ?? ??? ??? ?? ?? ???? ??????.
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- ?????? PHP?? ???? ????? ??? ???? ? ???? ???? ?? ???? ??? ????? ?? ??? ????? ????. ?? ?? ?? ??? ?? ???? ???? ?? ?, ???? ?? ? ??? ???????. 1. ?????? ???? ????, ???? ?? ??? ??????? ????? ?? ??? ???? ????. 2. ?????? ???? ???? ?????? ?? ???? ??????, ??? ??? ?? ??????. 3. ?????? ???? ????? ??? ???, ??, ??? ??? ? ? ??? ???????. 4. ?????? ???? ? ??? ????. ?? ?? ? ?? ????? ??????. 5. ???? ??? ?? ?????? ??? ? ????. 6. ?????? ??? ?? ? ??? ??? ?? ?? ????. PHP7.4? ?? ??? ????? ??????? ???? ????. PHP8.0? ??? ??? ?? ??? ???? ???? ??????.
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- PHP 8.1?? DateTimeImutable? ?? ??? ??????
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- PHP? ???? ??? API? ??? ??? ??????
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- PHP 8?? NullSafe ???? ???? ??? ??????
- NULLSAFE ??? (?->)? ??? NULL?? ???? ??? ?? ?? ??? ?? ???? ??? ????? ???? ?? ? ?? ??? ???? ? ?? ?????. 1. ??? ????? ? ?? ??? ??? ???? ?? ?? ? ? ??? ?? ? ????. 2. ?? ??? ?? ???? ???? ?? NULL MERGE ??? (??)? ?? ??? ? ????. 3. ??? ?? ?? ?? ?? ??? ??? ??? ? ???, ??? ??? ??? ?????. ? : $ city = $ user?-> getAddress ()?-> getCity () ?? 'Unknown'; ????? ?? ??? ???? ??? ???? ????.
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