convert object of class into string

Question

class Person
{
    protected $name;

    public function __construct($name)
    {
        $this->name = $name;    
    }
}

class Business
{
    protected $staff; 

    public function __construct(Staff $staff) 
    {
        $this->staff = $staff;
    }

    public function hire(Person $person)
    {
        $this->staff->add($person); 
    }

    public function getStaffMembers()
    {
        return $this->staff->members();
    }


}


class Staff //staff é uma coleção, logo os membros são um array
{
    protected $members = []; 

    public function __construct($members = [])
    {
        $this->members = $members;
    }
    public function add(Person $person)
    {
        $this->members[] = $person; 
    }   
    public function members()
    {
        return $this->members;
    }   
}

$daniel = new Person('Daniel Santos'); //name==$daniel santos

$staff = new Staff([$daniel]);  

$laracasts = new Business($staff); 

$laracasts->hire(new Person("Jorge")); 

var_dump($laracasts->getStaffMembers());

I would like to print(implode("",$laracasts->getStaffMembers()); instead of just var_dump() it. Thanks.

If you want to be able to print an object, you'll need to add a __toString method to it. — Don't Panic
– Don't Panic, Commented Jun 29, 2017 at 20:36

Don't Panic · Accepted Answer · 2017-06-29 20:47:21Z

1

Add a __toString "magic method" to your Person class.

class Person
{
    protected $name;

    public function __construct($name)
    {
        $this->name = $name;
    }

    public function __toString()
    {
        return $this->name;
    }
}

__toString provides a string representation of the class, so you can use it in string contexts, like echo $person, or echo implode(', ', $laracasts->getStaffMembers());

In this example I just returned the person's name, but you can do more complex stuff in that method as well (formatting, etc.), as long as it returns a string.

edited Jun 29, 2017 at 20:47

answered Jun 29, 2017 at 20:42

Don't Panic

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1 Comment

Daniel Santos Over a year ago

After your answer i did some research and i just added the __tostring method to the Staff class, because i thought the members had to be converted into a string. Thanks a lot.

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