Slim 3.4.0 now provides PSR-7!
I've been neglecting Slim's PR queue recently, so this weekend I dedicated a lot of time to merging all the good work that our contributors have done. As a result, I'm delighted to release version...
View ArticleFiltering the PSR-7 body in middleware
Sometimes, there's a requirement to alter the data in the Response's body after it has been created by your controller action. For example, we may want to ensure that our brand name is consistently...
View ArticleChecklist for releasing Slim
Release process for Slim so that I don't forget any steps; based on a check list created by Asgrim. I should probably automate some of this! Preparation: Ensure all merged PRs have been associated to...
View ArticleHandling JSON data errors in Slim 3
When you send JSON data into a Slim Framework application with a content-type of application/json, then Slim will decode it for you if you use getParsedBody(): $app->post("/", function ($request,...
View ArticleRendering problem details in Slim
As I've already noted, in the project I'm currently building, I'm rendering errors in my Slim Framework API using RFC 7807: Problem Details for HTTP APIs via Larry Garfield's ApiProblem component and...
View ArticleStand-alone usage of Zend-InputFilter
Any data that you receive needs to be checked and validated. There are number of ways to do this including PHP's filter_var, but I prefer Zend-InputFilter. This is how to use it as a stand-alone...
View ArticleDefault route arguments in Slim
A friend of mine recently asked how to do default route arguments and route specific configuration in Slim, so I thought I'd write up how to do it. Consider a simple Hello route:...
View ArticleSlim's route cache file
When you have a lot of routes, that have parameters, consider using the router's cache file to speed up performance. To do this, you set the routerCacheFile setting to a valid file name. The next time...
View ArticleReplacing a built-in PHP function when testing a component
Recently I needed to test part of Slim that uses the built-in PHP functions header() and headers_sent(). To do this, I took advantage of PHP's namespace resolution rules where it will find a function...
View ArticleRoute specific configuration in Slim
A friend emailed me recently asking about route specific configuration in Slim. He wants to be able to set properties when creating the route that he can pick up when the route is matched. The way to...
View ArticleSlim 4 Cyclomatic Complexity
There's not much wrong with Slim 3; lots of people are using it very successfully producing APIs and websites of all kinds. For Slim 4 the main goals have been to support PSR-15, make it easier to use...
View ArticleA first look at Slim 4
With Slim 4 we have continued the tradition of allowing you to use the framework in the way that best fits you and your project. You can create a Slim application entirely in a single file suitable for...
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Receiving input into a Slim 4 application
A Slim 4 (and Slim 3) application receives data from three places: Any query parameters on the URL (the key-value pairs after the ?) The HTTP message's body (usually for POST and PUT) messages...
View ArticleSlim4-empty: minimal Slim 4 starting point
To simplify creating a new Slim 4 project, I've created slim4-empty which does this for me. To use it: $ composer create-project akrabat/slim4-empty my-new-project and you're done! The my-new-project...
View ArticleRunning Slim 4 in a subdirectory
If you want to run Slim 4 in a subdirectory of your website, then you have a few things you need to do. Let's consider the situation: Your main website is in the directory /var/www/html and is accessed...
View ArticleDependency Injection in Slim 4
In contrast with Slim 2 and Slim 3, Slim 4 does not ship with a DI container, but instead, supports any PSR-11 compatibly DI container that you provide. This is part of Slim 4's commitment to...
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Custom error rendering in Slim 4
One of the nice things about Slim 4 is that it's easier to customise the HTML generated on error without having to worry about the rest of the error handling mechanism. This is because we have...
View ArticleSetting HTTP status code based on Exception in Slim 4
One thing that's quite convenient is to be able to throw an exception with a valid HTTP code set and have that code sent to the client. For example, you may have: throw new \RuntimeException("Not...
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