Command-line CSS spriting
(In Russian) OK, CSS sprite tools exist. I'm pretty confident I actually made the very first one 🙂 But they break from time to time (like mine currently). And then the command line is cool (as opposed to scary) and oh-so-quick. And imagemagick is cool and oh-so-powerful. So let's see how we can create CSS sprites from the command line alone. Creating the image Starting with a list of separate ima
Conditional comments block downloads
I came across this blog post (via @pornelski and @souders) where Markus has stumbled upon a case where an IE6-only stylesheet included with a conditional comment blocks the downloads in IE8. Whaaat? I had to dig in. To give you a summary: turned out that any conditional comment, not only for an extra CSS, will block further downloads until the main CSS file arrives. Also the solution offered on th
Gzip your @font-face files
Adding custom fancy fonts to a web page seems to be all the rage these days. Looking at some examples with Net panel on, I saw some of those font files are 100K which is a pretty big price to pay for an ornament like this. I mean you can build whole pages, with fancy scripts, images, gradients and all, that are less than that size. Made me wonder about the sizes of those font files and in particul
"Don't make me wait" - slides from my eBay tech talk
Here are the slides from a tech talk I gave at eBay last week, I called it "Don't make me wait! or how to build high-performance web apps", inspired by, you guessed it, the excellent book "Don't make me think" by Steve Krug. There's some intimate details on YSlow's scoring algo towards the end and some stuff on progressive rendering and chunked encoding.
Canvas pie
UPDATE: Translation in Brazilian Portuguese here, thanks Maujor! OK, so you have an HTML table. Let's turn it into a pie chart with a bit of javascript. We'll be using the canvas tag, so the browser has to support it. For IE - well, you still have the table. That's why we'll call it progressive enhancement. Unobtrusive too. Here's a screenshot: » The demo is here (refresh for new colors) Here are
Image fun with PHP - part 2
This post is a demo of what the imagefilter() PHP function can do for you. The Original imagefilter() called with different filter constants Filter: IMG_FILTER_BRIGHTNESS Code to reproduce: <?php $image = imagecreatefrompng('nathalie.png'); imagefilter($image, IMG_FILTER_BRIGHTNESS, 5); imagepng($image, 'img_filter_brightness_5.png'); imagedestroy($image); ?> Filter: IMG_FILTER_BRIGHTNESS Code to
Make your javascript a Windows .exe
These days an average web developer needs to have a broad matrix of skills in order to do his/her job. HTML, CSS, JavaScript, AJAX, XML, some server side language, some linux skills, some apache, some database skills, standards, accessibility, SEO, the list goes on. Parts of the list are also multiplied by (or raised to the power of?) the number of browsers you want to support. Crazy, isn't it? We
RGB color parser in JavaScript
What is it A JavaScript class that accepts a string and tries to figure out a valid color out of it. Some accepted inputs are for example: rgb(0, 23, 255) #336699 ffee66 fb0 red darkblue cadet blue For more accepted inputs - see the demo. Here's the javascript class - rgbcolor.js. Some history / motivation I was playing around with an idea (will post later) and I needed to get color information us
Laziest image resize in PHP
Today I saw a post at digg.com on image resizing with PHP and there was quite a discussion. Let me share the laziest way (that I know of) how to do it - PEAR::Image_Transform is all it takes. Here goes: <?php require_once 'Image/Transform.php'; $i =& Image_Transform::factory(''); $i->load('test.jpg'); $i->fit(100,100); $i->save('resized.png', 'png'); ?> In addition, the Image_Transform library off
Firebug console for IE
Update: A better version of what I was trying to do is here. It works around the cross-domain permission problems in IE by not loading a page in the frame, but putting there the actual content. Firebug - no words to describe how cool it is, really. After the recent new release (1.0. beta) the number of features is overwhelming. I for one can't live anymore without it, seriously. One of the things
phpied.com » Blog Archive » DB-2-MDB2
Intro Recently I had to move an existing project from using PEAR::DB to PEAR::MDB2 - the new database abstraction layer. I took notes on the parts of the code I needed to change, I hope they can benefit someone who's doing the same. Many thanks go to Lukas Smith, the lead developer, he was always responding very fast to my reports and questions in the PEAR mailing list. One thing to notice in MDB2
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file_put_contents() for PHP4
OPML to HTML via JavaScript
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