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<?php // PHP Get Integer Size (wouldn't expect 32-bit OS to deal with 64-bit Int's) var_dump(PHP_INT_SIZE); // setup $dt = DateTime::createFromFormat("U", PHP_INT_MAX); // should return 64-bit max var_dump(sprintf("%064b", $dt->format('U'))); // should return 64-bit max var_dump(sprintf("%064b", $dt->getTimestamp()));

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