Classes allow you to define your own data types. All classes start with the class keyword followed by the name of the class and opening and closing curly braces.
To create an instance of a class, you use the "new" keyword in front of the class name with parentheses.
A class can define attributes and methods. An attribute is a piece of data stored on the class instance. You can define an attribute by adding the word "public" and a variable name inside the class definition.
class Bicycle
{
public $color;
}
Then, when you create an instance of the class, you can set and use the color attribute on the bicycle using "->".
$bike = new Bicycle();
$bike->color = 'Blue';
echo $bike->color . "\n";
A method is a function attached to the class. You can add a method to a class by using the "public" keyword followed by the function. A method can access the attributes and methods of the instance using the "$this" variable.
class Tricycle
{
public $color;
public function echoColor()
{
echo $this->color . "\n";
}
}
$bike = new Tricycle();
$bike->color = 'Red';
$bike->echoColor();