In this video we look at controlled inputs in React. This is unique concept to React that can be tricky to understand at first.
We'll be polishing the demo we started in the last lesson "Introduction to One-Way Data Flow."
Continue reading %Video: Controlled vs Uncontrolled Components in React%
When building and maintaining WordPress websites, it’s important to find ways to improve site performance and decrease page load times. This helps reduce bounce rates and increase rankings on search engines.
There are several ways of achieving performance through a WordPress site’s theme and plugin code – for example, minifying JavaScript, CSS and images. There’s also server based configuration options – for example, enabling caching, or using a WordPress Plugin to help cache static content.
However, we can’t control the content – specifically images – that clients will add to their WordPress web site. Images may be uploaded in their original form, leading to site performance issues and increasing page load times.
In this article we will explore different ways of optimizing JPEG and PNG images, which are uploaded by clients and site owners into WordPress.
When a WordPress user uploads an image, WordPress provides two functions which we can use to create copies of the original image, at specific dimensions. This is useful where we want to output an image at a specific size within our theme.
Within the WordPress Administration, under Settings > Media, there are three predefined image sizes: thumbnail, medium and large. Each can have their own dimensions set.
Because WordPress will always resize images to these sizes (resulting in 4 images being stored - the original, thumbnail, medium and large sizes), it’s worth setting these first and using them within your WordPress Theme where possible.
Continue reading %Mastering Image Optimization in WordPress%
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It has been just over a year and a half since the team at TechDivisionGmbH were interviewed here on Sitepoint about their paradigm changing PHP application server system called appserver.io. At the time of the interview, appserver was just breaking out as an alpha. Since then, a lot has happened and appserver is now GA as a production system, currently in version 1.0.5, with version 1.1.0 on the horizon.
You’re probably asking, “Why is appserver paradigm changing?”
The answer is, because it tackles the last frontier of PHP application development: high performance for large applications from a server resource optimization and collaboration perspective. This is the realm of PHP development which a good number of professional PHP developers have been calling for, like Manuel Lemos in his “PHP7 Features and Release Date” blog (see the section about a “Standalone Multi-threading Web Server”) and Fabien Potencier, father of Symfony, in his presentation “My Take on PHP”, where he notes he is also working on such an application server solution himself. Well, look no longer Fabien, we already have a really good solution with appsever.io.
Appserver Community Edition is licensed under the Open Source License 3.0. The TechDivsion team also offer a Professional Edition and an Enterprise Edition too.
Continue reading %Appserver – a Production-ready PHP-based Server%
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