\Scope\Guard - lexically-scoped resource management, port of the Perl module Scope::Guard
$handler = function() {...};
$guard = new \Scope\Guard($handler);
// Fire the handler immediately
$guard = null;
// Detach the handler
$guard->dismiss();
// Attach the handler
$guard->dismiss(false);his module provides a convenient way to perform cleanup or other forms of resource management at the end of a scope. It is particularly useful when dealing with exceptions: the \Scope\Guard constructor takes an anonymous that is guaranteed to be called even if the thread of execution is aborted prematurely. This effectively allows lexically-scoped "promises" to be made that are automatically honoured by PHP's garbage collector.
\Scope\Guard __constract(callable $handler)
The __construct method creates a new \Scope\Guard object which calls the supplied handler when its __destruct method is called, typically at the end of the scope.
void dismiss(bool $bool = true)
dismiss detaches the handler from the \Scope\Guard object. This revokes the "promise" to call the handler when the object is destroyed.
The handler can be re-enabled by calling:
$guard->dismiss(false);
chocolateboy chocolate@cpan.org
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This library is free software. You can redistribute it and/or modify it under the same terms as PHP itself.