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<?php
//source: http://stackoverflow.com/questions/1019076/how-to-search-by-key-value-in-a-multidimensional-array-in-php

function search($array, $key, $value) {
    $results = array();

    if (is_array($array)) {
        if (isset($array[$key]) && $array[$key] == $value) {
            $results[] = $array;
        }

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function getArray($array, $index) {
    if (!is_array($array)) return null;
    if (isset($array[$index])) return $array[$index];
    foreach ($array as $item) {
        $return = getArray($item, $index);
        if (!is_null($return)) {
            return $return;
        }
    }
    return null;

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MySQL

Getting started: http://www.sqlteaching.com/

Related tutorial: http://cd64.de/mysql-cli

SQL joins infografic: http://cd64.de/sql-joins

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Share Counts

I have always struggled with getting all the various share buttons from Facebook, Twitter, Google Plus, Pinterest, etc to align correctly and to not look like a tacky explosion of buttons. Seeing a number of sites rolling their own share buttons with counts, for example The Next Web I decided to look into the various APIs on how to simply return the share count.

If you want to roll up all of these into a single jQuery plugin check out Sharrre

Many of these API calls and methods are undocumented, so anticipate that they will change in the future. Also, if you are planning on rolling these out across a site I would recommend creating a simple endpoint that periodically caches results from all of the APIs so that you are not overloading the services will requests.

Twitter

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Finally, Simple Form support Boostrap 3. 👏

But I found it still dosen't support some components in Bootstrap 3. Or may be in the future. But I can't wait, so I find a solution to support them. It was inspired by heartcombo/simple_form#531 (comment) .

This is a final solution and I used in my project.

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      function truncText (text, maxLength, ellipseText){
        ellipseText = ellipseText || '…';
       
        if (text.length < maxLength) 
            return text;

        //Find the last piece of string that contain a series of not A-Za-z0-9_ followed by A-Za-z0-9_ starting from maxLength
        var m = text.substr(0, maxLength).match(/([^A-Za-z0-9_]*)[A-Za-z0-9_]*$/);
        if(!m) return ellipseText;
        

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Creating a new Rails app with Rspec, Backbone, Jasmine

NOTE: This guide assumes that you already have ruby, rails, and mysql installed on your machine, and have an IDE or code editing tool (VIM!) all ready to go.

Creating the app

First thing's first. Rails makes it nice and simple to create a new app with the proper directory structure (lets assume we are calling this app “luna” and our directory with projects is “projects”):

$ cd projects
$ rails new luna

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// 100-score solution for http://codility.com/demo/take-sample-test/

function equi(array) {
    var i, 
        len = array.length, 
        sum = 0,
        leftSum = 0,
        rightSum;

    for (i = 0; i < len; i++) {

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# db/migrate/20101004063749_create_photos.rb

class CreatePhotos < ActiveRecord::Migration
  def self.up
    create_table :photos do |t|
      t.string :name,         :null => false
      t.binary :data,         :null => false
      t.string :filename
      t.string :mime_type
      t.timestamps

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TinyMCE with file manager

This post shows how to use TinyMCE 4.1 WYSIWYG text editor in a Rails 4 application for editing content in a textarea field.

TinyMCE is a powerful online WYSIWYG editor with many plugins.

If you want to insert an image by selecting it from images stored on server or upload an image to server, then you need to have a file manager with tinyMCE. TinyMCE comes with a file manager which is not free.

elFinder is an open-source file manager which can be easily integrated with tinyMCE 4.1.