Мапперы, ORMы, LINQ для PHP

RedBeanPHP is an easy to use ORM for PHP.
It’s a Zero Config ORM lib that ‘automagically’ builds your database schema.

Short version first… minimal requirements

The most complete port of .NET 4 LINQ to PHP, with many additional methods.
Lazy evaluation, error messages and other behavior of original LINQ.
Detailed PHPDoc and online reference based on PHPDoc for all methods. Articles are adapted from original LINQ documentation from MSDN.
100% unit test coverage.
Best performance among full-featured LINQ ports (YaLinqo, Ginq, Pinq), at least 2x faster than the closest competitor, see performance tests.
Callback functions can be specified as closures (like function ($v) { return $v; }), PHP “function pointers” (either strings like 'strnatcmp' or arrays like array($object, 'methodName')), string “lambdas” using various syntaxes ('"$k = $v"', '$v ==> $v+1', '($v, $k) ==> $v + $k', '($v, $k) ==> { return $v + $k; }').
Keys are as important as values. Most callback functions receive both values and the keys; transformations can be applied to both values and the keys; keys are never lost during transformations, if possible.
SPL interfaces Iterator, IteratorAggregate etc. are used throughout the code and can be used interchangeably with Enumerable.
Redundant collection classes are avoided, native PHP arrays are used everywhere.
Composer support (package on Packagist).
No external dependencies.

Используя ORM помните

Обратная операция – парсинг SQL кода