At the start of my career as a developer, there were almost no ORM for PHP, there existed some classes that enabled you to easily access DB but not ORM.

ORM(Object Relational Mapping) in computer software is a programming technique for converting data between incompatible type systems in object-oriented programming languages. In other words it maps the relational database to the objects in your application. So each table becomes and object.

Doctrine is one of the powerful ORM present for PHP and with Doctrine 2 its has provided more features and ease of accessing database.

for each in:

JavaScript 1.6 added the Array.forEach method:

JAVASCRIPT:

1. [1, 2, 3].forEach(function(item) { alert(item) });

JavaScript 1.7 added array comprehensions for array initialization:

JAVASCRIPT:

1. var squares = [item * item for each (item in [1, 2, 3])];

I just realized I can (ab)use comprehensions to iterate arrays with Perl-like syntax by throwing away the result:

JAVASCRIPT:

1. [alert(item) for each (item in [1, 2, 3])];

I can iterate object properties the same way:

JAVASCRIPT:

1. var obj = { foo: 1, bar: 2, baz: 3 };
2. [alert(name + "=" + obj[name]) for (name in obj)];

Edward Lee points out how to use Iterators:

JAVASCRIPT:

1. [alert(key + "=" + val) for ([key, val] in Iterator({a:1,b:2,c:3}))]

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