Human class implementation
First of all: Extract your classes into extra files and require_once them as necessary. I found the Java style of having one class per file a very good one.



Second: Learn and start to use PHPDoc to document your code.



//Blueprint


That's not a helpful comment...only write a comment if it is helpful.



// properties of human
private $gender;
private $name;
private $age;
private $talk;


Such structural comments are unnecessary if your class is correctly structured and indented.



$this-&gt;gender   = $gender;
$this-&gt;name     = $name;
$this-&gt;age      = $age;
$this-&gt;talk     = $talk;


Personally I don't like this kind of intending. It can make code easier to read, but in a pure "assign all parameters to all fields" constructors it seems kinda unnecessary.



class female extends Human{


Is it a typo that female is lower case?



private $bum;


If it holds the size of the bum, then it should be called $bumSize. The same goes for $feet.



$malePerson     = new male('male', 'John Doe', '32', 'clear', 'beard', 'adams apple in my throat');


Apart from the unnecessary intending, this is a good example stringly typed programming. You're using a string for everything even though the age should be an integer.

Let's have a look at the basic variables a Human consists of:


$gender Should an enumeration with two values, Male and Female.
$name Names are strings, so it's okay.
$age Is an integer and should therefor be an integer.
$talk Is also a string.


And let's go forth with the Male:


$facialHair Should be an enum, or an integer to indicate strength.
$adamsApple Not sure what this is.


Also forget what I just said about $gender, Human should be an abstract class and getGender() should be an abstract method that is implemented by the next class.



&lt;html&gt;
     &lt;?php Some code with echo... ?&gt;
&lt;/html&gt;


That's not a well-formed HTML document.

&lt;html&gt;
    &lt;head&gt;
        &lt;title&gt;Title of your page&lt;/title&gt;
    &lt;/head&gt;
    &lt;body&gt;
        Content goes here.
    &lt;/body&gt;
&lt;/html&gt;


Ideally you would perform initializations before the html tag and then just use everything prepared in the body.