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Archive for the ‘Php’ Category:

Developing a Facebook Application for absolute beginners – step 5

Emanuele Feronato on Oct 9, 2009 • 19 Comments

Welcome to the 5th step. Let’s make a small recap: Step 1: Creation of the application itself Step 2: Publishing a text on the user’s status Step 3: Publishing text, links and images on the user’s wall Step 4: Inviting friends to use the application Now it’s time to make the application post a notification [...]

WordPress plugin prototype to check the date and time that wp files have been last modified

Emanuele Feronato on Oct 8, 2009 • 8 Comments

Like some of you noticed during these days, my blog was hacked. Someone injected an encoded javascript code into my footer.php theme making my site open an iframe with some badware. The same old things that happen when you’re famous :) The boring part of this story is now I check for my WP files [...]

Developing a Facebook Application for absolute beginners – Step 4

Emanuele Feronato on Oct 7, 2009 • 9 Comments

The best way to do some viral marketing through Facebook is using inite forms to allow users to share applications with their friends who might not have otherwise known about them. Since users are invited to use applications by friends, they are (at the moment) likely to view each invite request, providing them an opportunity [...]

Developing a Facebook Application for absolute beginners – step 3

Emanuele Feronato on Sep 30, 2009 • 21 Comments

In step 1 we created a simple Facebook application, and in step 2 we made our application able to write on the wall Now it’s time to add images and more text to users’ wall when they run the application. This is what I am creating: I know I wrote “appliction”… but it was a [...]

Developing a Facebook Application for absolute beginners – step 2

Emanuele Feronato on Sep 28, 2009 • 22 Comments

It’s time to add some features to the application we created in step 1. This time we’ll add some interaction with Facebook, such as publishing results on your wall. The new script is this one:

That is the same as Developing a Facebook Application for absolute beginners until line 33

Php

MySQL to JSON with PHP

Emanuele Feronato on Sep 23, 2009 • 7 Comments

Ugly title for a post, really… but I did not find any function to convert the result of a MySQL query directly into JSON notation, so I made my own function. I really needed it today, so I am sharing it with you. It’s not a everyday use function, but I am sure some of [...]

Developing a Facebook Application for absolute beginners

Emanuele Feronato on Sep 20, 2009 • 108 Comments

With more than 300 million active users and 50% of them using it every day (source), Facebook can be an interesting way to make some viral marketing. One of the most effective ways is developing an application users (and users friends – and friends of users friends – and…) will use every day. This tutorial [...]

Understanding and creating on the fly Photoshop Color Swatches with php

Emanuele Feronato on Sep 15, 2009 • 4 Comments

This tutorial won’t cover basic Color Swatches information… I suggest you to follow Photoshop’s help if you don’t know what I am talking about. The interesting value of the Swatches palette is the ability to load custom swatch collections, so you can quickly access to specific colors without having to remember any numeric color values. [...]

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pic2col – extract color schemes from a picture

Emanuele Feronato on Sep 11, 2009 • 8 Comments

Ever wondered the point in calculating color distance at Color difference algorithm and Color difference algorithm – part 2? The answer is pic2col… just another picture to color scheme converter… as well as this is just another WordPress blog… but it’s MY picture to color scheme converter… this means I am going to make pic2col [...]

Color difference algorithm – part 2

Emanuele Feronato on Sep 8, 2009 • 11 Comments

It’s time to see how to calculate difference between two colors. I am using the CIE1994 formula because it’s quite accurate and not that complex to calculate. Here it is, assuming I have two colors in Lab format where (thanx to Bruce Lindbloom)

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