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Added description of class sections (#22306)

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Added description for class definition, instance variables, setter and getter functions, creation of instance and calling a function on it
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Šimun Gogić
2018-11-19 14:56:38 +01:00
committed by Tom
parent 3d053150b3
commit fd42737b1d
1 changed files with 8 additions and 8 deletions
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16
guide/english/php/class/index.md
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@@ -5,14 +5,14 @@ title: PHP - Class
### Simple Class for Beginner!
```php
class Lab {
private $name = '';
class Lab { // class keyword is mandatory identifier for class creation, after class keyword goes the name of the class(e.g. Lab)
private $name = ''; // $name is instance variable, which means that every instantiated object has it's own copy of variable $name
public function setName($name) {
$this->name = $name;
}
public function setName($name) { // function setName is setter function that sets the value of instance variable $name
$this->name = $name; // because $name is the name of both instance variable and function parameter, we use $this keyword
}
private function getName() {
private function getName() { // getName is getter function that returns the value of instance variable $name
return $this->name;
}
@@ -23,7 +23,7 @@ class Lab {
}
$breaking_bad = 'Heisenberg';
$lab = new Lab();
$lab->setName($breaking_bad);
$lab = new Lab(); // keyword new creates instance of Lab class, variable $lab points to that instance
$lab->setName($breaking_bad); // $lab variable that points to Lab instance calls setter function setName with $breaking_bad as parameter
echo "My Name is " . $lab->say_my_name(). "!";
```