What is the output of the following code? class C { public $x = 1; function construct() { ++$this->x; } function invoke() { return ++$this->x; } function __toString() { return (string)…

The correct answer is D. 3. See the full explanation below for the reasoning.

Magic Methods and Traits

Question

What is the output of the following code?
class C {
public $x = 1;
function __construct() { ++$this->x; }
function __invoke() { return ++$this->x; }
function __toString() { return (string) --$this->x; }
}
$obj = new C();
echo $obj();

Options

How the community answered

(26 responses)

A
8% (2)
B
4% (1)
C
8% (2)
D
81% (21)

Topics

#__invoke#__construct#__toString#magic method order

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