Encountered an issue with the following line of code while running on a server with PHP7.4:
public function expiresAfter(int|\DateInterval|null $time);
Received a ParseError indicating that PHP was expecting a variable. Unable to find information about the symbol's usage, as shown in this Reference.
What do the vertical bars signify in this context? Is there a way to modify this code for compatibility with PHP7.4?
PHP8 introduces union types:
Union types allow for the combination of two or more types, indicating that any of them can be used.
For example:
public function foo(Foo|Bar $input): int|float;
They behave like an or condition on the object/type that can be used as input. In this case, only either Foo or Bar can be used as input parameters.
If you need your code to work on PHP7.4, simply remove the types:
public function foo($input);
Source:
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