A URL shortening service written in php with slim microframework.

News:

2012 01 09, AUTH: Basic functionality for managing authorized users. Still lack the opportunity to register. Probably will be implemented after the custom URL module.

2012 01 08, BASE62: On request, using a hashing algorithm in base62. So the service is no longer case insensitive.

2012 01 08, IDIORM: I switched from pure and simple "PDO" to "idiorm" a lightweight nearly-zero-configuration object-relational mapper and fluent query builder for PHP5. Therefore, the project also requires idiorm. Download fromofficial site "idiorm.php" and copy to directory "vendor". I need the sql max function, and since using a row query did not seem a big improvement over the "PDO" I used an approach like this:

class ORM_EXT extends ORM
{
    public static function for_table($table_name)
    {
        parent::_setup_db();
        return new self($table_name);
    }
    public function max($column)
    {
        if(method_exists('ORM', 'max')) return parent::max($column);
        $this->select_expr('MAX('.$column.')', 'maxvalue');
        $result = $this->find_one();
        return ($result !== false && isset($result->maxvalue)) ? (int) $result->maxvalue : 0;
    }
}

I'm not sure the best way, I must investigate.

History:

I wanted to learn Slim and ender, and I decided that the best way was a "tour de force" of twelve hours spent in documentation and some code. From this was born the idea of a url shortening service, because it is easy to implement. There is much work to do: it completely missing a part of administration, and I would like to use notorm instead of PDO. I need to test on internet explorer, i have coded on a linux machine (chakra rulez!) and do not have an ie now. This is only a small base.

Implementation choices:

I chose an algorithm for generating hashes very simple: He recovers from the last DB Id (integer, autoincrement) then add 1 and converts everything into base 62. The base 62 allows the use of letters and numbers. [0-9], [a-z] and [A-Z]. You can still get a good number of URLs "shortened" even with the base 62, for example by taking a hash of 5 characters we can index:

62 * 62 * 62 * 62 * 62-1 => 916.132.831 urls!

Installation:

To install the application requires some frameworks: Download Slim PHP from the official site and unpack into the directory "vendor." Client side, I used toast.css and ender.js, for convenience the version used of these libraries is inside public_html. I compiled ender as follows: ender build domready qwery bean bonze reqwest

Todo:

• Admin Interface
• bug fixing (???)
• Testing on internet explorer
• Add the possibility of using custom short url for hash bigger then 5 chars.
• be more social ;-)

.htaccss:

I tried the following "htaccess" on many hosts including economic, and I never had any problems, then I suggest:

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !=/favicon.ico
RewriteRule . /index.php [L]
</IfModule>

Of course, feel free to use your preferred version, for more information I recommend the site of Slim.

References:

• Slim, a PHP Microframework
• ender, the no-library library
• toast.css, a simple but complete CSS framework.
• idiorm.php, A lightweight nearly-zero-configuration object-relational mapper and fluent query builder for PHP5.

Live Sample:

piqo.it, a living demo.

Contact:

• mail => michelangelog@gmail.com
• blog => micheg.blogspot.com