Arrow Operator

[FastlaneOne]

How are people able to use the arrow operator like this:

$this->something->something(); 

[logic_earth]

http://us3.php.net/manual/en/language.oop.php
http://us3.php.net/manual/en/language.oop5.php

[SoulScratch]

It's used in object oriented code and can refer to a method or property of an object.

class person { 
public $name; 
}; 
$john = new person(); 
$john->name = 'John'; 
echo $john->name;
<WhiteVAL> Return: John

[Ernie1]

class one
{
    public $one = "I'm in one<br />";

    public function test()
    {
        echo "I'm in one too";
    }
}

class two
{
    private $d;

    public function __construct()
    {
        $this->d = new one();

        echo $this->d->one;

        $this->d->test();
    }
}

$two = new two(); 

[bhanson]

You can also daisy chain methods by returning $this.

class Test
{
    public function foo()
    {
        return $this;
    }   
    
    public function bar()
    {
        return $this;
    }   
}   


$test = new Test();
$test->foo()
     ->bar()
     ->foo()
     ->bar()
     ->foo()
     ->bar(); 

[Ernie1]

or even:

class one
{
    public $one = "I'm in one<br />";

    public function test()
    {
        echo "I'm in one too";
    }
}

class two
{
    private $d;

    public function __construct(one $d)
    {
        $this->d = $d;

        echo $this->d->one;

        $this->d->test();
    }
}

$one = new one();

$two = new two($one); 

[FastlaneOne]

Thank you all so much