Question

I use camel case which has the first letter of all variable names, functions, etc lowercased. But the class names are capitalized. Should I use:

class Foo
{
   function foo()
   {

   }   
}

or :

class Foo
{
   function Foo()
   {

   }   
}

Which is a better convention? I’m confused.

Answer 1

Named constructors are PHP 4 convention. And yes, when you do it that way you should match the case of the class.

But PHP 4 is old news these days. PHP 5 has been the de-facto version for several years now. And PHP 5 uses a constant constructor name, __construct. It’s always this, regardless of the class’ name.

class a
{
  public function __construct()
  {}
}

class b
{
  public function __construct()
  {}
}