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A lightweight nearly-zero-configuration object-relational mapper and fluent query builder for PHP5.
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Build Status

Feature complete

Idiorm is now considered to be feature complete as of version 1.4.0. Whilst it will continue to be maintained with bug fixes there will be no further new features added.

A lightweight nearly-zero-configuration object-relational mapper and fluent query builder for PHP5.

Tested on PHP 5.2.0+ - may work on earlier versions with PDO and the correct database drivers.

Released under a BSD license.

See Also: Paris, an Active Record implementation built on top of Idiorm.


  • Makes simple queries and simple CRUD operations completely painless.
  • Gets out of the way when more complex SQL is required.
  • Built on top of PDO.
  • Uses prepared statements throughout to protect against SQL injection attacks.
  • Requires no model classes, no XML configuration and no code generation: works out of the box, given only a connection string.
  • Consists of one main class called ORM. Additional classes are prefixed with Idiorm. Minimal global namespace pollution.
  • Database agnostic. Currently supports SQLite, MySQL, Firebird and PostgreSQL. May support others, please give it a try!
  • Supports collections of models with method chaining to filter or apply actions to multiple results at once.
  • Multiple connections supported
  • PSR-1 compliant methods (any method can be called in camelCase instead of underscores eg. find_many() becomes findMany()) - you'll need PHP 5.3+


The documentation is hosted on Read the Docs:

Building the Docs

You will need to install Sphinx and then in the docs folder run:

make html

The documentation will now be in docs/_build/html/index.html

Let's See Some Code

$user = ORM::for_table('user')
    ->where_equal('username', 'j4mie')

$user->first_name = 'Jamie';

$tweets = ORM::for_table('tweet')
    ->join('user', array(
        '', '=', 'tweet.user_id'
    ->where_equal('user.username', 'j4mie')

foreach ($tweets as $tweet) {
    echo $tweet->text;


1.4.0 - release 2013-09-05

1.3.0 - release 2013-01-31

  • Documentation moved to and now built using Sphinx
  • Add support for multiple database connections - closes issue #15 [tag]
  • Add in raw_execute - closes issue #40 [tag]
  • Add get_last_statement() - closes issue #84 [tag]
  • Add HAVING clause functionality - closes issue #50
  • Add is_new method - closes issue #85
  • Add ArrayAccess support to the model instances allowing property access via $model['field'] as well as $model->field - issue #51
  • Add a result set object for collections of models that can support method chains to filter or apply actions to multiple results at once - issue #51 and #22
  • Add support for Firebird with ROWS and TO result set limiting and identifier quoting [mapner] - issue #98
  • Fix last insert ID for PostgreSQL using RETURNING - closes issues #62 and #89 [laacz]
  • Reset Idiorm after performing a query to allow for calling count() and then find_many() [fayland] - issue #97
  • Change Composer to use a classmap so that autoloading is better supported [javierd] - issue #96
  • Add query logging to delete_many [tag]
  • Fix when using set_expr alone it doesn't trigger query creation - closes issue #90
  • Escape quote symbols in "_quote_identifier_part" - close issue #74
  • Fix issue with aggregate functions always returning int when is float sometimes required - closes issue #92
  • Move testing into PHPUnit to unify method testing and query generation testing

1.2.3 - release 2012-11-28

  • Fix issue #78 - remove use of PHP 5.3 static call

1.2.2 - release 2012-11-15

  • Fix bug where input parameters were sent as part-indexed, part associative

1.2.1 - release 2012-11-15

  • Fix minor bug caused by IdiormStringException not extending Exception

1.2.0 - release 2012-11-14

  • Setup composer for installation via packagist (j4mie/idiorm)
  • Add order_by_expr method [sandermarechal]
  • Add support for raw queries without parameters argument [sandermarechal]
  • Add support to set multiple properties at once by passing an associative array to set method [sandermarechal]
  • Allow an associative array to be passed to configure method [jordanlev]
  • Patch to allow empty Paris models to be saved ([j4mie/paris]) - issue #58
  • Add select_many and select_many_expr - closing issues #49 and #69
  • Add support for MIN, AVG, MAX and SUM - closes issue #16
  • Add group_by_expr - closes issue #24
  • Add set_expr to allow database expressions to be set as ORM properties - closes issues #59 and #43 [brianherbert]
  • Prevent ambiguous column names when joining tables - issue #66 [hellogerard]
  • Add delete_many method [CBeerta]
  • Allow unsetting of ORM parameters [CBeerta]
  • Add find_array to get the records as associative arrays [Surt] - closes issue #17
  • Fix bug in _log_query with ? and % supplied in raw where statements etc. - closes issue #57 [ridgerunner]

1.1.1 - release 2011-01-30

  • Fix bug in quoting column wildcard. j4mie/paris#12
  • Small documentation improvements

1.1.0 - released 2011-01-24

  • Add is_dirty method
  • Add basic query caching
  • Add distinct method
  • Add group_by method

1.0.0 - released 2010-12-01

  • Initial release
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