How to solve a syntax error problem when attempting to read mail on Linux based systems from a terminal.

Creating theme-compatible flex-based layouts with Doorkeeper CSS.

How to add a default margin and padding on elements using theme defaults..

How to add hover effects on links using CSS pseudo classes.

How to remove the underline on HTML links with CSS, and how to select links depending on location or class or ID.

How to change numbers and bullets on HTML lists like ol and ul.

How to make italic text by changing the font-style of parts, or all, of the text on a HTML page.

How to enable Apache mod_php using a2enmod, and how to find out what the name of the module is.

E_STRICT will only show you warnings about deprecated PHP features and things that might not be future-proof, it will not show you notices or warnings; E_ALL includes everything, and that includes E_STRICT messages.

The E_USER_NOTICE error type is used when triggering errors under specific circumstances, such as when we want to inform someone that they are using a feature in our code in an unintended way.

How to show or hide error messages in PHP. There are several ways to do this; from within the PHP scripts themselves, from php.ini, or from changing Apache configuration files.

Developers can trigger custom PHP error messages using the trigger_error function; but throwing an exception is often better.

Doorkeeper apps are often user-developed extensions, but may also include build-in CMS features.

Notices are non-fetal errors in the code that often does not prevent execution. From a developers point of view, they are sometimes intentional.

To install magento using composer, you will first need to generate a public and private key pair from the magento marketplace.

The apache_response_headers() function allows you to obtain some of the HTTP response headers that are sent by the Apache HTTP server; it does not return all the headers, so it might not do what you expect.

PHP tutorials from A to Z; these tutorials should cover most things that you will ever need to know about PHP. Help spread the word by linking and sharing!

Inkscape fails to save optimized svg files due to failure to properly identify or include dependencies.

A 400 Bad Request response is used to indicate a problem happened due to something on the client-side.

Article on why Dependency Injection and composition is better than inheritance and family trees.

We can prevent adding properties to instantiated objects in PHP to help enforce good coding practice; in this tutorial I show how this is accomplished.

Check if response headers has already been sent before attempting to send other headers.

Making money on AdSense is not very realistic for Bloggers, the competition is just to high.

This tutorial describes how to schedule a cron job to run every minute using crontab -e; if finer control is needed, it is suggested that we use a loop with a sleep of a few seconds.