Sado is a simple PHP ORM package, easy to use, and offers video tutorials

NOTE: This answer was originally posted at StackOverflow.com by Shay Anderson

If you are looking for an ORM that implements the Data Mapper paradigm rather than Active Record specifically, then I would strongly suggest that you take a look at GacelaPHP.

Gacela features:

• Data mapper
• Foreign key mapping
• Association mapping
• Dependent mapping
• Concrete table inheritance
• Query object
• Metadata mapping
• Lazy & eager loading
• Full Memcached support

Other ORM solutions are too bloated or have burdensome limitations when developing anything remotely complicated. Gacela resolves the limitations of the active record approach by implementing the Data Mapper Pattern while keeping bloat to a minimum by using PDO for all interactions with the database and Memcached.

NOTE: This answer was originally posted at StackOverflow.com by Noah Goodrich

I have had great experiences with Idiorm and Paris. Idiorm is a small, simple ORM library. Paris is an equally simple Active Record implementation built on Idiorm. It’s for PHP 5.2+ with PDO. It’s perfect if you want something simple that you can just drop into an existing application.

NOTE: This answer was originally posted at StackOverflow.com by Sander Marechal

Brazilian ORM: http://www.hufersil.com.br/lumine. It works with PHP 5.2+. In my opinion, it is the best choice for Portuguese and Brazilian people, because it has easy-to-understand documentation and a lot of examples for download.

NOTE: This answer was originally posted at StackOverflow.com by Paulo Araujo

You should check out Idiorm and Paris.

NOTE: This answer was originally posted at StackOverflow.com by th3mus1cman

Agile Toolkit has its own unique implementation of ORM/ActiveRecord and dynamic SQL.

Introduction: http://agiletoolkit.org/intro/1

Syntax (Active Record):

$emp=$this->add('Model_Employee');
$emp['name']='John';
$emp['salary']=500;
$emp->save();

Syntax (Dynamic SQL):

$result = $emp->count()->where('salary','>',400)->getOne();

While Dynamic SQL and Active Record/ORM is usable directly, Agile Toolkit further integrates them with User Interface and jQuery UI. This is similar to JSF but written in pure PHP.

$this->add('CRUD')->setModel('Employee');

This will display AJAXified CRUD with for Employee model.

NOTE: This answer was originally posted at StackOverflow.com by romaninsh

Have a look at the LEAP ORM for Kohana. It works with a bunch of databases, including DB2, Drizzle, Firebird, MariaDB, SQL Server, MySQL, Oracle, PostgreSQL, and SQLite. With a simple autoload function, it can work with almost any PHP framework. The source code is on GitHub at https://github.com/spadefoot/kohana-orm-leap. You can checkout LEAP’s tutorials online.

The ORM library works with non-integer primary keys and composite keys. Connections are managed via a database connection pool and it works with raw SQL queries. The ORM even has a query builder that makes building SQL statements super simple.

NOTE: This answer was originally posted at StackOverflow.com by Matthew

MicroMVC has a 13 KB ORM that only relies on a 8 KB database class. It also returns all results as ORM objects themselves and uses late static binding to avoid embedding information about the current object’s table and meta data into each object. This results in the cheapest ORM overhead there is.

It works with MySQL, PostgreSQL, and SQLite.

NOTE: This answer was originally posted at StackOverflow.com by Xeoncross

NotORM

include "NotORM.php";
 $pdo = new PDO("mysql:dbname=software");
 $db = new NotORM($pdo);
 $applications = $db->application()
->select("id, title")
->where("web LIKE ?", "http://%")
->order("title")
->limit(10)
;
foreach ($applications as $id => $application) {
echo "$application[title]\n";
}

NOTE: This answer was originally posted at StackOverflow.com by Charlie Chai

I work on miniOrm. Just a mini ORM, for using Object Model & MySQL Abstraction Layer as simply as possible. Hope it may help you : http://jelnivo.fr/miniOrm/

NOTE: This answer was originally posted at StackOverflow.com by Cédric Mouleyre