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<?php // Mutable $today = new DateTime; $yesterday = $today->sub(new DateInterval('P1D')); // subtract one day $tomorrow = $today->add(new DateInterval('P1D')); // add one day // $today, $yesterday and $tomorrow are all the same date! 🤯 echo "Today is ".$today->format('Y-m-d'). "\n"; echo "Yesterday is ".$yesterday->format('Y-m-d'). "\n"; echo "Tomorrow is ".$tomorrow->format('Y-m-d'). "\n"; // Immutable $today = new DateTimeImmutable; $yesterday = $today->sub(new DateInterval('P1D')); // subtract one day $tomorrow = $today->add(new DateInterval('P1D')); // add one day // $today, $yesterday and $tomorrow are all the same date! 🤯 echo "With DateTimeImmutable: Today is ".$today->format('Y-m-d'). "\n"; echo "With DateTimeImmutable: Yesterday is ".$yesterday->format('Y-m-d'). "\n"; echo "With DateTimeImmutable: Tomorrow is ".$tomorrow->format('Y-m-d'). "\n";
Output for git.master, git.master_jit, rfc.property-hooks
Today is 2020-12-03 Yesterday is 2020-12-03 Tomorrow is 2020-12-03 With DateTimeImmutable: Today is 2020-12-03 With DateTimeImmutable: Yesterday is 2020-12-02 With DateTimeImmutable: Tomorrow is 2020-12-04

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