Skip to content Skip to footer

Building ZF3 composed pages using Nesting View Models and Forward Controller Plugin

Normally in ZF3 MVC projects, each controller action matches one view and use it to render its output. Occasionally, we may want to build your ZF3 pages by dispatching various controllers from within the matched controller and merging outputs into a unique final view. In this way we can aggregate one or more views to create complex pages like report summaries or widget dashboards. In this post, we will see how to write few lines of code to include output of an arbitrary action into action matched from route.

How to inject Zend Service Manager in ZF3 Controllers

Zend Service Manager component is Zend Framework's implementation of service locator pattern. This object is very usefull component for an application and is largely used in ZF applications. Unfortunately in ZF3 default application, Service Manager component is no more available in controllers. An official solution exsists for this, but in this little tutorial, I want to share an easy solution to inject Service Manager in all controllers.

How to setup a Translate Controller Plugin in Zend Framework 3

Sometimes in our Zend Framework 3 multi-language application, we could need to access to Zend Translator component directly from Controllers. For example, when we have to translate a string to return in a JsonModel. So, let's see how to write a very simple Controller Plugin that will help us to save a lot of code (and time). Following explanation will assume we just have at least a Skeleton ZF3 Application with working Zend Translator component.

Update Twitter Bootstrap to release 3 in Zend Framework 2

Recently I started a new project based on Zend Framework 2, using Twitter Bootstrap as CSS framework. Some days ago, new Bootstrap v3 was released and introduced a lot of changes and improvements. Because of ZF2 Skeleton Application comes out-of-box with Twitter Bootstap 2, I decided to setup the new project skeleton and update CSS framework to latest available release. In this post, I'll describe the process to update Bootstrap to v3 into a ZF2 project. Please note: I set up the project with Zend Framework 2.2.2 and updated to Twitter Bootstrap 3.0.0-rc1 because, actually, are latest available versions. If time is passed, you should check official documentations to ensure that this procedure is still valid. I'll describe update process assuming that we have a working Skeleton Application deployed following Zend Framework Getting starded guide. First of all, we have to update libraries in public/ folder by accomplish following steps:
  1. Download Twitter Bootstrap library package and unzip it.
  2. Move content of dist/ folder into <project>/public/ folder.
  3. Download Glyphicons package and unzip it.
  4. Copy fonts/ folder into <project>/public/ folder.
  5. Copy css/bootstrap-glyphicons.css into <project>/public/css/ folder.

PHP jobs with Gearman and Supervisor

The problem

Often in a PHP project there could be operations that need to be executed asynchronously. Some example are: processing mail queues, indexing data, computation that requires long elaboration time. A common behavior is handle those operations by using cron to execute processes in background. However, using cron requires expedients to avoid cross executions and forces us to implement some specific procedures and mechanism to store data needed to elaborate.

Solution: Gearman + Supervisor

The solution that involves Gearman and Supervisor, instead, don't require any kind of data storage mechanism and supply a very simple way to develop processes in PHP.

Processi PHP con Gearman e Supervisor


Spesso in un progetto PHP capita di dover eseguire operazioni in modo asincrono. Alcuni esempi sono: lavorazione di code email, indicizzazione di dati, calcoli che richiedono lunghi tempi di elaborazione. Prassi comune è gestire tali operazioni utilizzando cron per eseguire processi in backgroud. Tuttavia, utilizzare cron richiede espedienti per evitare l'accavallemento delle esecuzioni e ci costringe ad implementare procedure specifiche e meccanismi di stoccaggio dei dati necessari per l'elaborazione.

Soluzione: Gearman + Supervisor

La soluzione che concerne Gearman e Supervisor, invece, non richiede alcun meccanismo di data storage e fornisce un modo molto semplice per sviluppare processi in PHP.

Zend Framework 3.0 branch started!

Yesterday, Evan Coury, Zend Framework contibutor, announced start of Zend Framework branch. Development goals will be merged between ZF team ideas and community suggestions that will be collected in this topic. Anyway, Evan immediatly specifies that development will be focused on avoid dramatic migration as was for transition from ZF1 to ZF2. For all developers that use…

Setup Doctrine 2 filters in Zend Framework 2


Doctrine filter is a very powerfull tool that can be used to add conditional clauses at SQL level into our Doctrine 2 engine. This means that filters constraints will affect DQL queries, collections, lazy loading, etc. How to setup and use filters in generic conditions is well explained in this article of official Doctrine documentation, but in a Zend Framework 2 project, the same operation is a bit different. So, in this post, we will explain how to configure one or more filters into our Zend Framework 2 projects.

Configurare filtri Doctrine 2 in Zend Framework 2


Un filtro di Doctrine è uno strumento molto potente che può essere utilizzato per aggiungere condizioni a livello SQL all'interno del nostro gestore di oggetti Doctrine 2. Ciò significa che i filtri influenzeranno il comportamento di query DQL, collezioni, recupero dati, ecc. Come configurare ed utilizzare filtri in condizioni generali è ben spiegato in questo questo articolo della documentazione officiale di Doctrine, ma in un progetto basato su Zend Framework 2, la stessa operazione è un po' diversa. Così, in questo articolo, vedremo come configurare uno o più filtri nei nostri progetti sviluppati su Zend Framework 2.

Esempio esplicativo

Il seguente esempio è basato su quello riguardante un filtro "locale" mostrato nel manuale di Doctrine. Assumeremo di avere un progetto ZF2 funzionante sviluppato a partire da ZendSkeletonApplication con il modulo DoctrineORMModule configurato (fare riferimento ai manuali ufficiali per raggiungere questo obiettivo). Innanzitutto, abbiamo bisogno di una classe interfaccia da utilizzare come segno distintivo per decidere quali entità saranno influenzate dal filtro. Quindi, se vorremo che un filtro sia applicato ad un'entità dovremo solo fargli implementare tale interfaccia. Ovviamente, possiamo anche utilizzare l'interfaccia per specificare quali metodi implementare nell'entità, se vogliamo. Questo può essere utile e vedremo un esempio in un prossimo articolo.

ReCaptcha in Zend Framework 2 without Zend/Form

The problem

Captcha is a very useful mechanism to avoid automated abuse of your sites and applications. In particular, reCAPTCHA is a Google powered service that offers a free and simple way to implement a captcha protection field in your forms or pages. Zend Framework 2 implements his own components to handle captcha and a specific one to handle reCAPTCHA service. At the moment, the ZF2 documentation is very usefull if you want to integrate a reCAPTCHA in your Zend/Form component, but lacks in describing how to use reCAPTCHA service component alone. Actually Zend/Form is very powerful, but sometimes a developer need to use standard html to implement his own forms and this prevents to use ReCaptcha as Zend/Form element.

The solution

To reach our achievement, we will implement a reCAPTCHA service that can be use all over the project to generate captchas and test them against values inserted by user. This service will be used principally in views and controllers. The following code implementation assumes that you have a working ZF2 project, configured as described in official documentation.