Sergic

<?php

//function build tree --- recursive
function show_tree( &$data, $point, $str ){
	//reset($data);
	$str .= "&nbsp;&nbsp;&nbsp;";
	while ( list( $index, $point_data ) = each( $data ) ){
		if ( $point_data[ 'parent_id' ] == $point ){
			echo $str.$point_data[ 'name' ].'<br>';
			unset( $data[ $index ] );

Sergic

import java.io.*;
import java.util.*;

/** The class encapsulates an implementation of the Apriori algorithm
 * to compute frequent itemsets.
 * 
 * Datasets contains integers (>=0) separated by spaces, one transaction by line, e.g.
 * 1 2 3
 * 0 9
 * 1 9

Sergic

<?php
/*
* This file is part of the INB application.
*
* (c) Sergey Gerdel <skif16@ukr.net>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/

Sergic

/*зы. эт просто памятка. для меня и всех. если юзать форму для аякса и прочего.
уже в который раз попадаюсь на пару ошибок...

мы сделали bind->request для формы, а функция isValid() возвращает false.*/
/*1. проверить глобальные ошибки*/
$form->getValues()
/*2. проверить каждое поле*/
foreach ($form as $form_field){
  $form_field->getErrors(); // глянуть что тут...
}

Sergic

$('input[placeholder]').each(function(){  
        
        var input = $(this);        
        
        $(input).val(input.attr('placeholder'));
                
        $(input).focus(function(){
             if (input.val() == input.attr('placeholder')) {
                 input.val('');
             }

Sergic

var parser = document.createElement('a');
parser.href = "http://example.com:3000/pathname/?search=test#hash";

parser.protocol; // => "http:"
parser.hostname; // => "example.com"
parser.port;     // => "3000"
parser.pathname; // => "/pathname/"
parser.search;   // => "?search=test"
parser.hash;     // => "#hash"
parser.host;     // => "example.com:3000"

Sergic

The new Secure Password Hashing API in PHP 5.5

The [RFC for a new simple to use password hashing API][rfc] has just been accepted for PHP 5.5. As the RFC itself is rather technical and most of the sample codes are something you should not use, I want to give a very quick overview of the new API:

Why do we need a new API?

Everybody knows that you should be hashing their passwords using bcrypt, but still a surprising number of developers uses insecure md5 or sha1 hashes (just look at the recent password leaks). One of the reasons for this is that the crypt() API is ridiculously hard to use and very prone to programming mistakes.

Sergic

Awesome PHP Libraries

A list of amazingly awesome PHP libraries that you should consider using (and some other shiny extras).

• Composer/Packagist - A package and dependency manager.
• Composer Installers - A multi framework Composer library installer.
• Symfony2 - A framework comprised of individual components.
• Zend Framework 2 - Another framework comprised of individual components.
• Laravel 4 - A simple PHP framework.
• Lithium - Another framework of components.

Sergic

# -*- mode: ruby -*-
# vi: set ft=ruby : 
# David Lutz's Multi VM Vagrantfile
# inspired from Mark Barger's https://gist.github.com/2404910

boxes = [
  { :name => :web,    :role => 'web_dev',     :ip => '192.168.33.1', :ssh_port => 2201, :http_fwd => 9980, :cpus =>4, :shares => true },
  { :name => :data,        :role => 'data_dev',         :ip => '192.168.33.2', :ssh_port => 2202, :mysql_fwd => 9936, :cpus =>4 },
  { :name => :railsapp,    :role => 'railsapp_dev',     :ip => '192.168.33.3', :ssh_port => 2203, :http_fwd => 9990, :cpus =>1}
]

Sergic

<?php

filter_var($email, FILTER_VALIDATE_EMAIL);