Web Development

In a nuthsell, SimpleXMl has two things broken: 1. Elements that represent “emtpy” tags evaluate to false. This is weird design. 2. Other elements sometimes evaluate to false due to […]

The following code does not work as expected: $xml = simplexml_load_string(“<root><a/><b>text</b></root>”); $node = $xml->xpath(“/root/a”)[0]; if ($node) process($node); // process($node) may not be called for some valid nodes Unlike most other […]

I have discovered a bug in PHP 5.4.4: a simple XPATH does not work. $xml = simplexml_load_string(“<root><a/><b>text</b></root>”); $node = $xml->xpath(“/root/b”)[0]; // $node is null $node evaluates to FALSE This is […]

TL;DR: XML signatures are trouble, because they are ridiculously hard to implement right. XML signatures in PHP are double trouble, because of lack of decent libraries. .NET security libraries are […]

Dock panel for Angular.js

It sounds unbelievable, but modern HTML applications seem to lack proper support for dock panels. So, I created one for Angular.js. See the code in Plunker My solution is based […]

I am trying to build a simple web application based on grids. Like, have this widget occupy 1/3 of the screen on bottom, that one one line of large bold […]

I wrote a little web page that “debugs” HTML 5 touch interface (requires touch screen device). Unlike regular mouse clicks, there is no “onTouch” attribute, you have to add and […]