Install Phalcon on Ubuntu 12.04

1. We need some packages previously installed:
> sudo apt-get install php5-dev php5-mysql gcc libpcre3-dev


2. create the extension from C source
> git clone --depth=1 git://github.com/phalcon/cphalcon.git
> cd cphalcon/build
> sudo ./install

3. Add the extension to your php.ini:
extension=phalcon.so

4. Finally, restart the webserver
> sudo service apache2 restart

My config new Ubuntu instance

sudo a2enmod rewrite

sudo cp /etc/apache2/sites-available/default /etc/apache2/sites-available/example.com

sudo a2ensite example.com

PHP RegEx for ISO date

$subject = '1985-12-31';
$pattern = '/^[0-9]{4}[-\/](0[1-9]|1[12])[-\/](0[1-9]|[12][0-9]|3[01])$/';
preg_match($pattern, $subject, $matches);
print_r($matches);

Capture RFID Scanner on webpage without input

$(document).ready(function(){

    var arr = [];
   
    $(this).bind('keypress', function(e){
    
        var code = e.keyCode || e.which;
   
        if(code == 13) { //Enter keycode
            console.log(arr.join('',','));
            console.log('Press Enter');
            arr = [];
        } else {
            // convert each kepress to character and add to array
            arr.push(String.fromCharCode(e.keyCode));
        }
    });
});

Access Heroku Remote Terminal

How to access heroku's remote terminal for desired app/repo

1. Clone Heroku Repo
    e.g: git clone git@heroku.com:sample-app.git
    Note: make sure to download the Heroku Toolbelt and login with you credentials.

2. locate on app directory  
     e.g:  cd sample-app


3. run this
     heroku run bash


type "exit" to go back to local terminal