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Example code of imliam/php-catch-exit

Informations about the package php-catch-exit

PHP Catch Exit Statements

Latest Version on Packagist Total Downloads

Gracefully handle an unwanted exit statement.

🤔 F.A.Q.

Why would you need this?

This shouldn't be needed at all, really. There is virtually no practical reason to have an exit statement over an exception in a modern PHP application, as all frameworks have their own decent, extendable exception handlers that should be taken full advantage of.

That said, a lot of beginners PHP tutorials end up showing the same sort of code for your first database connection:

Luckily this is a thing of the past for the most part, but unfortunately still seems to be a practice some people use. Over the past few years, I still occasionally come across Composer packages that still use exit and die statements when an error occurs.

These packages should be avoided entirely - or better yet, fork or submit a pull-request when they pop up.

So why do this?

This package/function is more of a proof-of-concept to show how these situations can be handled, rather than a serious suggestion of a way to keep working with them.

💾 Installation

You can install the package with Composer using the following command:

📝 Usage

If you've ever written a basic exit statement before, you'll understand that, if the output buffer is empty at that point, you'll be greeted with a blank white screen in the browser with text given to the statement.

This package adds a single helper function that will accept a closure as the first argument. This closure is where you can add any code that you expect could throw an exit statement - just like the try block of a try-catch statement.

Assuming no exit occurs, you can return a value from this closure and continue your application like normal.

Print a string

The second argument of the function can accept a string which will be output to the buffer if an early exit occurs in the closure from the first argument.

This lets you decide what gets shown instead of the previous content, which may be out of your control.

You can also use this to render a view that can be displayed to the user in case this occurs.

Execute a closure

However, the second argument can also be another closure which will only be executed if there is an early exit occurring in the first closure. It'll also give you access to the current output buffer

Here, you can gracefully handle the way the application shuts down. You may want to perform some actions such as:

This can also be used to handle fatal errors - such as when a class that doesn't exist is being instantiated or when the request exceeds the maximum execution time for PHP.

🔖 Changelog

Please see the changelog file for more information on what has changed recently.

⬆️ Upgrading

Please see the upgrading file for details on upgrading from previous versions.

🎉 Contributing

Please see the code of conduct for details on contributing to the project.

🔒 Security

If you discover any security related issues, please email [email protected] instead of using the issue tracker.

👷 Credits

♻️ License

The MIT License (MIT). Please see the license file for more information.

All versions of php-catch-exit with dependencies

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Requires php Version ^7.1
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