该类的对象无法转换为字符串[关闭]

Question

I have this code:

class int64(){
    var $h; var $l;
    function int64(){
        $this->$h=$h;
        $this->$l=$l;
    }
}

function int64copy($dst,$src){
    $dst.$h = $src.$h;
    $dst.$l = $src.$l;
}

While calling function int64copy its saying Catchable Fatal Error: object of the class int64 could not be converted to string in line

Any idea?

Answer 1

You can't use doc notation on objects - it's trying to concatenate the objects, so it calls int64::__toString() - which fails.

Edit: Better example:

class int64 {

    public $h; 
    public $l;

    function __construct($h, $l) {
        $this->h = $h;
        $this->l = $l;
    }


    public function __toString()
    {
        return sprintf('h: %s, l: %s', $this->h, $this->l);
    }

}

$a = new int64(1, 2);
$b = clone $a;

echo $a;