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Package again
Short Description A PHP package to follow best practices when using loops
License MIT
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Informations about the package again
Again
A handy utility package that lets you write loops in a declarative way and avoid infinite loops.
Installing
Usage
When you need to execute a block of code repeatedly until a specific condition is met, you might typically use a while
loop. For example:
This approach works, but it can lead to an infinite loop if the condition is never met or the exit condition is not properly defined. To prevent this, it is essential to add safeguards, such as limiting the number of iterations.
Introducing Again
Again simplifies repetitive task execution with built-in safeguards to prevent infinite loops. It allows you to specify both a maximum number of iterations and a stopping condition, ensuring your loop behaves as expected.
Here’s how Again can help:
In this example, the email sending will attempt up to 3 times until $this->isSent() is true. If the condition
isn't
met after 3 attempts, the loop will automatically stop, preventing an endless loop.
Example with Custom Logic
You can also define your loop behavior using more complex logic by passing custom conditions or limits. For example:
Know Why the Loop Ended
Sometimes you need to know why the loop has ended, whether it reached the maximum number of iterations or the stop
condition was met. Again provides the AgainStopReason enum to indicate the reason for the loop termination.
For example:
Key Features:
- Limit the number of iterations: Use the
limitTo()method to specify a maximum number of executions, preventing infinite loops. - Custom stop condition: Use the
until()method to define the condition that will cause the loop to stop when it evaluates totrue. - Flexible execution: Pass custom logic or actions to be executed on each iteration.
- Track loop termination reason: The
execute()method returns anAgainStopReasonvalue, letting you know why the loop ended.
Contributing
You can contribute in one of three ways:
- File bug reports using the issue tracker.
- Answer questions or fix bugs on the issue tracker.
- Contribute new features or update the wiki.
The code contribution process is not very formal. You just need to make sure that you follow the PSR-0, PSR-1, and PSR-2 coding guidelines. Any new code contributions must be accompanied by unit tests where applicable.
License
MIT
