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Laravel Daily:
Laravel Exceptions: How to Catch, Handle and Create Your Own
Apr 23, 2018 @ 11:25:10

On the Laravel Daily site they've posted a tutorial showing the Laravel users out there how to create and catch custom exceptions in your application. Exceptions are a useful tool to handle "exceptional situations" where something fails badly enough where the application cannot proceed.

Quite often web-developers don’t care enough about errors. If something goes wrong, you often see default Laravel texts like “Whoops, something went wrong” or, even worse, the exception code, which is not helpful at all to the visitor. So I decided to write a step-by-step article of how to handle errors in elegant way and present proper error information to the visitor.

He uses a "user search" task to help illustrate the methods for creating custom exceptions, catch exceptions and showing the error to the user. Code is included as well as screenshots of the output. With the basics of exception handling out of the way, they move the handling off into a service and take it one step further to create a custom "user not found" exception and its use in the search method.

tagged: laravel exception tutorial handling create catch custom

Link: http://laraveldaily.com/how-to-catch-handle-create-laravel-exceptions/

Théo Fidry:
Create and deploy secure PHARs
Jan 04, 2018 @ 13:45:57

For those Phar users out there Théo Fidry has written up a guide to help you create and deploy them securely with the help of a few tools and OpenSSL to sign the release to ensure integrity.

For those who are not familiar with it, PHAR (Php Archive) is analogous to the JAR file concept but for PHP. It allows you to package an application into a single file making it convenient to deploy or distribute.

[...] So what are PHARs useful for then? Well still the same thing: packaging applications. Although not many people may want to use this technique for web applications, it is still extremely useful for console applications.

The tutorial starts off by showing a few different methods for installing Phars and how to build them from your code. While they can be built manually, he suggests using the box project to help make it simpler. It also covers self-updating phars and shows how to update the box.json configuration to use a generated key to sign the release. Finally it covers a method for using Travis-CI to auto-build the phar and how to keep the OpenSSL key safe and out of the checked in code.

tagged: phar tutorial install create sign openssl box build travisci

Link: https://medium.com/@tfidry/create-and-deploy-secure-phars-c5572f10b4dd

Zend Framework Blog:
Create RSS and Atom Feeds
Apr 13, 2017 @ 12:47:01

In a previous post to the Zend Framework blog Matthew Weier O'Phinney talked about parsing feeds with Zend Framework components. In this latest post they cover the other half of the equation - creating RSS and Atom feeds using some of the same components.

In our previous article on zend-feed, we detailed RSS and Atom feed discovery and parsing. Today, we're going to cover its complement: feed creation!

zend-feed provides the ability to create both Atom 1.0 and RSS 2.0 feeds, and even supports custom extensions during feed generation. [...] You can also provide your own custom extensions if desired; these are just what we ship out of the box! In many cases, you don't even need to know about the extensions, as zend-feed will take care of adding in those that are required, based on the data you provide in the feed and entries.

He then shows how to pull in the zendframework/zend-feed component and how to use it to create a simple RSS feed with a title, link, description and "feed link". He then shows how to add new items to the feed (with details for each item) and how to render the resulting feed.

tagged: zendframework tutorial create rss atom feed component

Link: https://framework.zend.com/blog/2017-04-13-zend-feed-writing.html

Rob Allen:
Standalone Doctrine Migrations redux
Jul 07, 2016 @ 12:52:06

Rob Allen has posted a tutorial to his site making some updates to his previous work with the Doctrine migrations handling as a standalone component. In this new tutorial he talks about the newer way to use it in your projects.

Since, I last wrote about using the Doctrine project's Migrations tool independently of Doctrine's ORM, it's now stable and much easier to get going with.

He starts with the basic installation and configuration of the migrations tool, making use of a SQLite database as an example. He then shows the use of the basics of using it to make database changes:

  • creating a new migration
  • running the migrations

Each step comes with code, the commands you'll need to execute and an example of the resulting console output.

tagged: doctrine migration standalone update create execute

Link: https://akrabat.com/standalone-doctrine-migrations-redux/

Scotch.io:
Understanding Laravel Middleware
Jun 16, 2016 @ 13:20:48

The Scotch.io site has posted a tutorial that aims to help you understand middleware in Laravel applications - how they work and how to create ones based on your custom needs.

HTTP Middlewares provide a convenient mechanism for filtering HTTP requests entering your application. Laravel, for example, has a middleware for verifying a user's authentication.

These are some cases where I have had to resort to using middleware. There are many more cases where you would like to use a middleware. [...] By the end of this article, you should be able to create a middleware, registers it and use it in your projects. We will be illustrating the creation till usage of middlewares by creating one of our own. Our middleware will enable maintenance either site-wide or on some routes.

They start by creating a middleware (theirs is DownForMaintenance) and how to register it with Laravel as a valid middleware option. By default they will execute with every request but you can narrow them down to only happening on certain routes (examples included). There's also mentions of middleware parameters, grouping middleware and deferring the response return until after other code is executed.

tagged: laravel middleware introduction tutorial create execute configure

Link: https://scotch.io/tutorials/understanding-laravel-middleware

Jeff Madsen:
Eloquent Create, Update, New...the Untold Story 2016-04-01
Apr 06, 2016 @ 12:19:20

Jeff Madsen has a quick post to his site with the "untold story" behind Eloquent's save and create in the Laravel framework.

Over on Laravel Quick Tips we've been looking at a few of these functions and their uses, and I thought it might be helpful to collect all of them together in a single (I hope) coherent post.

Without further preamble, let's get to it. I'm going to use the basic User object and table that ships with a default installation of Laravel so you can follow along if you like.

He starts with the difference between "new" and "create", pointing out the one fundamental difference: one saves, one does not. He then looks at some of the other new/create functions (like findOrNew, firstOrCreate, updateOrCreate), what each of them does in the background and a quick snippet of code showing.

tagged: eloquent laravel create update new behindthescenes difference save

Link: http://codebyjeff.com/blog/2016/04/eloquent-create-update-new-the-untold-story

Paul Jones:
A Factory Should Create, Not Retain
Jul 08, 2015 @ 08:45:31

Paul Jones has posted his thoughts about factory behavior in PHP applications (well, really any kind of application as it's a pan-language concept). He suggests that factories should only create the objects requested and not persist them.

In a recent Reddit conversation, some of us went off on a tangent about factories. I maintained then, and do now, that a “factory” always-and-only returns a new instance. If you have a “factory” that returns anything other than a new instance, it’s not a factory alone. In the case of factory methods, it is a factory + accessor; in the case of factory objects, it is a factory + registry. A “factory” (whether a factory method or factory object) is one way to separate object creation from object use.

He gives an example of a case where an object needs to be created for a "doSomething" method. His first example shows the creation of the "Item" inline, mixing the creation and use of the object into the same place. He replaces this with a "factory" class/method that only returns the new "Item" requested. He points out that a factory method that retains the object (like as a class property) has the same problem as the first example - retention. Instead he suggests an intermediate "collaborator" that splits out the creation and retention once again.

tagged: factory retain create object method collaborator example

Link: http://paul-m-jones.com/archives/6161

Matt Stauffer:
Creating Artisan commands with the new, simpler syntax in Laravel 5.1
Jun 11, 2015 @ 10:27:56

Matt Stauffer has posted the latest in his "What's New in Laravel 5" series today with a look at the changes in creating Artisan commands with a newer, simpler syntax.

If you're not familiar with Artisan commands, they're command-line functions that you can run to interact with your Laravel application. If you run php artisan from the command line in any Laravel application directory, you'll see a list of all of the Artisan commands available for each app. As you can see, Laravel comes with quite a few enabled out of the box.

He starts with a look at the old way of creating the commands using the "artisan make:console" command to build the class and an example of its contents. This version requires a good bit of extra code to reference things like arguments and define required parameters. He then compares this with the new way with a much simpler syntax and reduced about of code overall. One of the main differences he mentions is the concept of a "signature" for the command - a specially formatted string that defines configuration such as required and optional parameters. He finishes the post with a few examples of these signatures.

tagged: artisan commands syntax create laravel5 tutorial

Link: https://mattstauffer.co/blog/creating-artisan-commands-with-the-new-simpler-syntax-in-laravel-5.1

Remi Collet:
PHP-FPM in Docker
Dec 12, 2014 @ 11:57:35

Remi Collet has a new post today showing you how to get PHP-FPM up and running with Docker using a few simple lines in the Dockerfile. Docker is a toolset that lets you easily create and provision containers with scripted configurations (and link them together).

[The] use case [for this is] running php 5.3.3 on a Fedora 20 / 21 development workstation, for production deployment on RHEL-6 (as no php 5.3 SCL exists). This example can be easily adapted for all available PHP versions available as RPM (5.3.3 in RHEL-6, 5.4.16 in RHEL-7, 5.4.16 and 5.5.6 in RHSCL 1.2 or using a third party repository).

The contents of the Dockerfile are included, making a call to yum to install all the needed packages, make a few replacements in the www.conf configuration file and create the default "www" directory. Finally, it fires up the PHP-FPM server with the IP given in the startup. The commands to create the container and launch it are also included in the post.

tagged: tutorial phpfpm docker container create configure

Link: http://blog.famillecollet.com/post/2014/12/11/PHP-FPM-in-Docker

Rob Allen:
Creating a zip file with PHP’s ZipArchive
Jan 15, 2014 @ 15:40:59

Rob Allen has a new post to his site today showing you how to create a ZIP file with the help of PHP's ZipArchive functionality. The latest versions would need to be installed as an extension (PECL) if they're not already there, but it makes creating the archives a lot simpler.

I recently had a requirement to create a zip file from a number of files created within my application. As it has been years since I last had this problem, I had a look around and discovered that PHP 5.2 has the ZipArchive class that makes this easy. ZipArchive is fully featured, but as I just wanted to create a simple zip file.

All it requires is a few short lines of code - one to open the archive itself, some to add in the files to compress down and another to close and create the file. It's a pretty simple process using this handy extension. Rob also included a bit of sample code showing how to send it out for download with the correct headers.

tagged: zip file archive create tutorial ziparchive

Link: http://akrabat.com/php/creating-a-zip-file-with-phps-ziparchive