Peter Sobieraj

While ago I was fighting with one bug. There was code witch was working, but stop working when I add empty foreach.

//that work with rest of code
function fun(){
  $table= array();
  //...
  return $table;
}
 
//that do not work with rest of code
function fun(){
  $table= array();
  //...
  foreach( $table as $key => $val ){}
  return $table;
}
 

(more…)

We all know Flash and Java. If you write webpage with it and if your users install it, then they can watch animation elements on your web page. But today I was playing with something new called "Canvas". (more…)

Few months ago I create program "Log Watcher" to observe logs of my webpage. I put it to sourceforge.net here so maybe somebody will also use it. In last week I recived emial with information that my program get Softpedia certification. (more…)

This tutorial is for thous who can programing but don't know Python language. I will show how to use variables, loops, arrays, functions, and how to write scripts. (more…)

In that lesson I will describe what are variables. (more…)

Yesterday I was installing jquery-ui at one of my websites. When I do that as it was writen in instruction all jquery-ui elements was 2 times bigger. I search a while and find how it was solved in demos at jquery.com. That CSS code:

body{ font: 62.5% "Trebuchet MS", sans-serif;}
.demoHeaders { margin-top: 2em; }
#dialog_link {padding: .4em 1em .4em 20px;text-decoration: none;position: relative;}
#dialog_link span.ui-icon {margin: 0 5px 0 0;position: absolute;left: .2em;top: 50%;margin-top: -8px;}
ul#icons {margin: 0; padding: 0;}
ul#icons li {margin: 2px; position: relative; padding: 4px 0; cursor: pointer; float: left;  list-style: none;}
ul#icons span.ui-icon {float: left; margin: 0 4px;}

Unfortunatly that solution change (destroy) all layout of website. So here is step by step instuction how to do it correct. (more…)

Basic lesson of programing in C++. I will show how to print text at screen. (more…)

In this lesson I will help you do decide which C++ compiler select. I will describe here Microsoft Visual C++ Express, Microsoft Visual Studio Profesional, Codeblocks and g++. Of course you can use different one if you want. (more…)

Today I take my old webpage and put it back to internet at psobieraj.peter-sobieraj.com. Maybe somebody will find it useful. Most parts of that page is in polish only. I was using that wepage to publish useful mathematics materials for friends during studies. (more…)

This is first post at my blog. And with this very first post I offcialy open my blog. Soon I will add here few interesting projects and useful information.